science

Thursday, 08 September 2022 13:39

Science Questions and Answers - Class 7 End Term 2 2022 Set 2

Which one of the following is not a way of controlling internal parasites?
1. Spraying,
2. Proper sanitation.
3. Deworming.
4. Cooking food properly.
Which of the following components of blood is the most abundant?
1. Platelets
2. White blood cells.
3. Plasma.
4. Red blood cells
The part of the breathing system where carbon dioxide is taken from the blood is the
1. nose
2. windpipe.
3. branchus.
4. alveolus.
The diagram below represents a maize flower

The part labelled Pabove is made up of
1. anthers and filament.
2. filament and stamen.
3. stigma and anthers.
4. styles and stigmas.
Which of the following foods given to a child suffering from me
1. Balanced diet.
2. Vitamins
3. Proteins.
4. Mineral salts.
Below are characteristics of a certain animal;.
1. It breathes through lungs.
2. It lays eggs.
3. its body is covered with scales. .
4. Its body temperature varies with the of the surrounding.
  Which of the following animals cannot be put in the same group with the animal having the characteristics above?
  1. Snake.
  2. Crocodile.
  3. Gecko.
  4. Toad.
The diagram below represents a plant

Which one of the following plants does not store food in the same place as the plant drawn above?
1. Sugarcane.
2. Irish potato.
3. Arrowroot
4. Ginger.
Which one of the following statements is true about all amphibians? They
1. lay eggs on the land near water.
2. have constant body temperature.
3. have scales on their bodies.
4. have soft moist bodies.
The liquid part of blood mainly
1. transports digested food.
2. transports oxygen around the body parts.
3. stops bleeding after injuries.
4. fights disease causing germs.
Which one of the following livestock parasites does not affect the internal organs of an animal?
1. Liverflukes.
2. Fleas.
3. Roundworms.
4. Lungworms
Which one of the following physical changes during adolescence is correctly matched?
Boys Girls
1. Broadening of hips growth of beards
2. Wet dreams voice breaks
3. Growth of beards menstrual flow
4. Broadening of shoulders production of sperms
For good health, one requires
1. cleanliness and smoking.
2. food and alcohol.
3. sleep and drugs.
4. sleep and exercise.
Which of the following groups of materials are all insulators?
1. Copper, plastic, wood.
2. Aluminium, plastic, glass.
3. Glass, wood, plastic.
4. Aluminium, silver, copper.
Which one of the following is not a source of current electricity?
1. Dry cells.
2. Electric cookers.
3. Solar panels.
4. Geothermal station.
The best way of staying away from drug abuse is by
1. following parental advice.
2. imitating peer's behaviour.
3. trying to find out the effect.
4. using legal drugs only.
The following is a description of a certain method of food preservation:
1. Dehydrates food.
2. Kills germs.
3. Eliminates bad smell in faadi
4. Common in both rural and urban areas.
  The method described above is
  1. refrigeration.
  2. sun drying.
  3. use of honey.
  4. freezing.
All the following immunisable diseases in infants are vaccinated against at six, ten and fourteen weeks. Which one is not?
1. Diptheria.
2. Pertusis.
3. Tetanus.
4. Tuberculosis.
Revolution is the movement of the
1. moon round the sun
2. sun round the moon
3. earth round the sun
4. sun round the earth
The diagram below represents a man warming himself by the fire.

Which one of the following shows how heat reaches the hands and the legs respectively?
1. Conduction, radiation
2. Radiation, conduction
3. Convection, conduction
4. Convection, radiation
Which one of the following practices involves conservation of water by re using?
1. Use of drip irrigation.
2. Flushing toilets with water that has been used for rinsing clothes.
3. Storage of water for use in case of shortage.
4. Collecting rain water from the roof of a house
Vibrating objects produce
1. sound
2. light
3. heat
4. force
Which of the following statements is true about nimbus clouds?
1. Are irregularly shaped.
2. Appear in hot afternoon.
3. Are dome-shaped on top.
4. Are found high in the sky.
Which of the following is not a type of a force?
1. Gravitational pull.
2. Weight
3. Pressure.
4. Friction.
Which one of the following is a characteristic of wind pollinated flowers?
1. Large in size
2. Stigma bangs outside the flower
3. Few heavy pollen grains
4. Small anthers firmly attached to the filament.
A pupil hanged her clothes on a clothline and noticed that it took long for them to dry. The weather was most likely to be
1. cold and calm.
2. cold and windy.
3. dry and cold.
4. hot and windy.
Which one of the following body structure in the table below is not correctly matched with it function?
Structure Function
1. Mouth food broken into small particles.
2. Liver produces digestive juice.
3. Large intestines absorbs water and mineral salts
4. Small intestines stores undigested food
To measure force, we neea:
1. beam balance.
2. weighing balance.
3. see-saw.
4. spring balance.
What would happen if two wooden blocks weighing 10kg and 1kg respectively were to be dropped from a height of 2m at the same time? They would
1. break into pieces.
2. reach the ground at the same time.
3. add weight to air
4. float in the air.
Three of the diagrams below can be used to made use of in a periscope except
1. formation of images.
2. reflection of light.
3. obstruction of light to form shadows
4. bouncing off of light.
Which one of the following consists of only female parts of a power?
1. Filament, anthers, style. Function
2. Stigma, ovules, petals. food broken into
3. Style, ovary, sepals. small particles.
4. Stigma, ovary, style, produces digestive juice.
Hookworms are not mally found in
1. cattle and pigs.
2. sheep and goats.
3. pigs and poultry.
4. sheep and cattle.
Faeces and decaying animal and plant matter
1. destroy crops.
2. make the soil poor for cultivation.
3. add humus to the soil.
4. are of no importance to the soil.
Which one of the following farm animals is correctly matched with its products?
1. Goat - mutton, skin, milk
2. Sheep - hide, wool, milk
3. Cow - milk, mohair, skin
4. Pig - pork, cheese, skin
Three of the following aspects of light ars Which one does not?
Which one of the following is the smallest and largest planet respectively?
1. Mercury and Jupiter
2. Mercury and Neptune.
3. Jupiter and Venus.
4. Saturn and Jupiter.
Which one of the following component of the environment is the most polluted?
1. Water
2. Air
3. Plants
4. Soil
Which one of the following is an artificial method of lighting a house?
1. Windows
2. Translúscent roofs
3. Large doors
4. Bulbs and use of H. E. P electricity.
Which one of the following scientific statements on properties of matter is
1. Liquids have definite volume.
2. Gases have no definite mass.
3. Liquids have definite mess.
4. Solid have definite size and volume.
The convection box below was set up and used by class 5 pupils to demonstrate convection of heat in air.

If the candle was placed at the point marked X, at what point did the pupils put the smoldering rag to produce better results?
1. 3
2. 2
3. 1
4. 4
Drainage, capillarity and aeration in soil all depend on
1. the slopiness of land.
2. proportional composition of the soil.
3. colour and organic matter in the soil.
4. type of mineral available in the soil.
In which one of the following processes is carbon dioxide not used?
1. Germination.
2. Making plant food.
3. Putting out fire.
4. Preservation of soft drinks.
The following are ways of maintainig tools except
1. repairing broken tools.
2. improper use of tools.
3. sharpening cutting tools.
4. cleaning tools after use.
Which of the following is false about arteries?
1. They have big valves,
2. Blood is under high pressure
3. Have pulse.
4. Have thick walls.
Below is an illustration of changes of states of matter.

Which arrow shows the process that occur as a result of decrease in temperature?
1. (iii), (iv)
2. (ii), (iii)
3. (i), (ii)
4. (i), (iv)
Which of the following vaccine is administered thrice to infants through injection?
1. Oral polio
2. B.C.G vaccine
3. DPT vaccine
4. Anti-measles.
Which one of the following is not a use of medicines?
1. Causing diseases.
2. Relieving pain.
3. Curing known diseases:
4. Preventing diseases.
Which pair of foods are the main sources of protective foods?
1. Meat and eggs.
2. Cereals and legumes.
3. Yams and cassava
4. Fruits and vegetables.
Which one of the following is the best method of transporting water over a long distance?
1. Cans
2. Animals
3. Pipes
4. Tankers
Which material below is not needed when investigating the presence of air in soil?
1. Water
2. Candle
3. Container
4. Dry soil
Which one of the following is not a use of heat energy?
1. Cooking food
2. Warming our bodies
3. Drying clothes
4. Seeing clearly

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Published in Class 7 End Term 2 Exams 2022 Set 2 with Answers

Tagged under

Thursday, 08 September 2022 08:20

Science Questions and Answers - Class 7 End Term 2 2022 Set 1

Questions

Below is a diagram of the mammalian heart,

Which one of the following statements is correct about the part marked P?
1. It carries deoxygenated blood
2. It transports blood from the lungs to the heart
3. It has valves
4. It carries blood to the rest of the body
Which one of the following statements is NOT true about arteries?
1. They have large lumens
2. They have thick walls
3. All of them carry blood rich in oxygen
4. They carry blood to the heart
Which one of the following is both a major and living component of the environment?
1. Rocks
2. Air
3. Animals
4. Soil
The pie chart below shows the components of air.

The component marked R is NOT used for;
1. germination of sceds
2. making plant food
3. burning
4. breathing
Which pair of processes of change of state of matter below requires an increase in temperature?
1. Expansion and contraction
2. Freezing and condensation
3. Melting and freezing
4. Evaporation and melting
The soil that cracks when dry;
1. has the best drainage
2. spreads easily when poured down
3. leaches so easily
4. has tiny particles
Which one of the following pair of factors will make a cork and a bottle top float on water respectively?
1. Mass and density
2. Shape and mass
3. Material and shape
4. Size and material
Which one of the following parts of an insectivorous plant helps to trap insects?
1. Flower
2. Leaf
3. Stem
4. Root
The following are characteristics of a certain animal;
1. they lay eggs 3
2. body wholy covered with scales
3. breath through the lungs
  The animal described above is likely to be;
  1. fish
  2. hen
  3. snake
  4. salamander
The following are true about maize plant and pawpaw plant except;
1. they are both flowering
2. they are green in colour
3. they both have separate male and female parts
4. there is pollination in both plants
Which one of the following would be the best way to control weeds in a wheat plantation?
1. Uprooting
2. Digging out
3. Use of herbicides
4. Slashing
Std 4 pupils set up an experiment below. They put two holes as shown.

The pupils concluded that;
1. pressure in liquids increases with depth
2. pressure in liquids is equal at the same depth
3. matter occupies space
4. liquids exert pressure in all directions
The following statements are TRUE about AIDS except;
1. married people should prevent its spread by abstaining
2. unmarried people should avoid having sexual intercourse to prevent its spread
3. it has no cure
4. it is caused by a virus
Which of the following pairs of materials can best be used as insulators?
1. Aluminium foil and dry wood
2. Rubber and plastic
3. Metal sheet and iron bar
4. Thin polythene and steel wool
Which one of the following is common between a turtle and a lizard? Both;
1. have external fertilization
2. lay eggs
3. breath through gills
4. have a constant body temperature

Use the diagram below to answer question 16.
0104Sci16

In which of the above labelled paris does absorption" take place?
1. T and U
2. Q and U
3. P and S
4. R and Q
A std 6 pupil came across a windvane whose tail was facing South. The wind was likely to be blowing to the;
1. East
2. North
3. South
4. West
Mr. Joseph, a Science teacher at Obama PrimarySchool, put sand particles in a sufuria which had boiling water. He saw the sand particles moving up and down. This was due to;
1. conduction in solids
2. convection in solids
3. radiation in gases
4. convection in liquids
The following are processes that take place in plants;
1. photosynthesis i
2. transpiration
3. food storage
4. protection
5. transportation
  Which of the above processes are performed by the soil?
  1. (iii) (iv)(v)
  2. (i)(ii) (ii)(iv) (v)
  3. (i) (iv) (v)
  4. (i)(iv) (v)
Which of the following groups of plants consists of green non-flowering plants only?
1. Avocado, grass, bean
2. Fern, cedar, fir
3. Moss, fern, toadstool
4. Mushroom, puffball, mould
Which one of the following statements is TRUE abour flour? It;
1. has a definite shape
2. has no definite size
3. has no definite shape
4. has an indefinite volume
Std 5 pupils of Kobola Primary carried out the experiment shown below.
From the experiment soil C is likely to;
1. have the best drainage
2. have large particles
3. be good for modelling
4. be best for growing crops
Which of the following lists consists of common communicable diseases?
1. Cholera, typhoid, bilharzia
2. Malaria, tuberculosis, typhoid
3. Anaemia, polio, tetanus
4. Kwashiorkor, marasmus, rickets
The following statements are true about carbohydrates except one. Which one? They;
1. provide the body with energy
2. keep the body warm
3. contain sugar and starch
4. build various body parts
The following statements describe drug misuse except one. Which one?
1. Taking wrong medicine
2. Taking medicine prescribed to someone else
3. Taking a wrong dosage
4. Buying medicine within a doctor's prescription
The following are practices that can lead to the spread of HIV/AIDS except;
1. eating together from a common plate
2. sharing sharp body piercing objects
3. exchange of saliva
4. mother to child during breast feeding
Which among the lists of materials below can be classified as opaque?
1. Skylight, clean water, window pane
2. Wood, mirror, metal sheet
3. Iron sheet, black polythene, clear plastic
4. Windscreen, tyre, dirty water
Std 5 pupils at Hillside school mixed water with soil as shown in the diagram below.

They shook after a while. The mixture settled. Layer E is likely to be;
1. water
2. humus
3. clay soil
4. gravel
Plants depend on animals for all the following except;
1. pollination
2. nutrients
3. shelter
4. carbon dioxide
Which one of the following components of the environment do living things depend on directly?
1. Soil and water
2. Air and soil
3. Water and air
4. Soil and light
The extent to which a type of soil feels fine or coarse is referred to as;
1. soil profile
2. soil drainage
3. soil texture
4. soil capillarity
Which one of the following conditions is not necessary for germination of seeds?
1. Soil
2. Warmth
3. Air
4. Water
The diagram below shows a maize seed.

The parts marked P, Q and Rare;

P Q S

A Style scar radicle   fruit scar

B Radicle plumule   endosperm

C Style endosperm   cotyledon

D Fruit scar plumule   radicle
Which one of the following conditions is not necessary for germination of seeds?
1. Soil
2. Warmth
3. Air
4. Water
Std 6 pupils were asked by their teacher to collect the following materials;
1. clay or plasticine
2. thorns or pins
3. glue or paste
4. manila paper and softboard
  Which of the following were they likely to make?
  1. Air thermometer
  2. Beam balance
  3. See saw
  4. The solar system
Roughages are important in the diet since they,
1. help in digestion of food
2. help to remove undigested food matter
3. prevent the skin from drying
4. are sources of energy
The flow chart below shows the movement of blood in the human body.

Which of the vessels marked J, K, L and M are likely to carry blood without oxygen?
1. J and K
2. Land M
3. M and K
4. J and L
Which of the following parts of the breathing system is wrongly matched with its function?
1. Nose - warming the air
2. Alveoli - moistening the air
3. Trachea - trapping dust particles with its hair
4. Lungs - removing carbon di xide from air
The diagram below shows a type of soil erosion.

The type of soil erosion can be controlled by;
1. planting cover crops
2. building porous dams
3. digging bench terraces
4. ploughing along the contours
Draining of stagnant water would help prevent the spread of;
1. tuberculosis
2. malaria
3. typhoid
4. tetanus
Which one of the following methods of food preservation does not allow air and bacteria to reach food?
1. Use of low temperatures and canning
2. Salting and refrigeration
3. Using ashes and canning
4. Use of honey and smoking
Which of the following components of soil can be investigated by use of heat?
1. Humus and water
2. Water and mineral particles
3. Air and humus
4. Water and air
Which of the following is not an effect of lack of proteins in young children?
1. Thin brown hair
2. Swollen face and stomach
3. Skin appears pale
4. Sores at the corners of the mouth
The diagram below represents a certain device

The device is used to;
1. measure the weight of objects
2. compare the mass of objects
3. measure the force of objects
4. measure the volume of objects
All the following are social effects of drug abuse except;
1. truancy
2. marital conflicts
3. poor judgement
4. rape
The following are characteristics of clouds;
1. mountain shaped
2. white in colour
3. have a flat bottom
4. appear like bundles of cotton wool
5. dark grey in colour
  Which of the statements above describe cumulus clouds?
  1. (i)(iii) (v)
  2. (ii) (iv) (v)
  3. (i)(ii) (v)
  4. (ii) (iii)(iv)
The following methods preserve food by dehydrating it except;
1. canning
2. salting
3. drying
4. smoking
Which of the lists below consists of natural sources of light?
1. Windows, bulb, moon
2. Sky light, firefly, sunligat
3. Gas, lamp, candle
4. Candle, torch, electricity
Which one of the following is likely to attack young bean plants after germination?
1. Mole
2. Aphid
3. Cutworm
4. Stalk borer .
Which one of the following livestock parasite affects the small intestines only?
1. Liverfluke
2. Tapeworm
3. Lungworm
4. Hookworm

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Published in Class 7 End Term 2 Exams 2022 Set 1 with Answers

Tagged under

Thursday, 01 September 2022 08:59

Science Questions and Answers - Class 8 End term 2 2022 Set 2

Questions

The following are all excretory organs. Which one is not?
1. Liver
2. Lungs
3. Kidney
4. Skin
The first and the second planets respectively from planet Earth are;
1. Mars and Jupiter
2. Mercury and Mars
3. Mercury and Venus
4. Mars and Saturn
In the food chain shown below, which animal can best fit at the place labelled Z?
Grass → Antelope → Z → Hawk
1. Zebra
2. Hippopotamus
3. Elephant
4. Leopard
The following are methods of controlling livestock parasites.
Which one controls both internal and external parasites?
1. Rotational grazing
2. Spraying
3. Deworming .
4. Drenching
The following are materials used to construct a
certain weather instrument.
1. Strong polythene paper
2. A wooden pole
3. Glue
4. String
  The weather instrument likely to be constructed is;
  1. an air thermometer
  2. a wind vane
  3. a wind sock
  4. a rain gauge
Three of the following are ways of reducing the force that opposes motion. Which one is not?
1. Lubrication surfaces
2. Streamlining bodies
3. Smoothening surfaces
4. Use of treads
All the following are methods of rotational grazing.
Which one involves use of temporary fencing?
1. Strip grazing
2. Paddocking
3. Tethering
4. Stall feeding
The following are adaptations in plants growing in the dry areas. Which one is not? They have;
1. succulent stems
2. deep roots
3. few stomata
4. flexible stems
Steven, a Science teacher set up the experiment represented by the diagram drawn below.

Which component of soil was the teacher investigating?
1. Water
2. Living organisms
3. Humus
4. Air
Which one of the following shows a pair of only sources of current electricity?
1. Bicycle dynamo and car battery
2. Water turbines and the sun
3. Dry cells and wind
4. Torch and car battery
Which one of the following is a use of water in industries?
1. Irrigation of crops
2. Cooking food
3. Skiing
4. Making pulp
During a thunderstorm, pupils from Neema Academy were observed;
1. playing on the football pitch
2. lying on the floor in the classroom
3. leaning against the classroom walls
4. sheltering under the verandah
  In which pair of observations are the pupils more likely to be struck by lightning?
  1. (i) and (iv)
  2. (ii) and (iv)
  3. (i) and (iii)
  4. (i) and (ii)
Which one of the following statements is true about a whale? It has;
1. scales on its body
2. gills for breathing
3. a varying body temperature
4. a constant body temperature
Which one of the following groups consists only of foodstuffs that will help to prevent kwashiorkor?
1. Bread, cowpeas, green grams
2. Cabbage, eggs, rice
3. Fish, eggs, beans
4. Maize, beans, spinach
A certain lever when in use can work with the load between the effort and the fulcrum. The lever is most likely to be;
1. a crowbar
2. a claw hammer
3. a wheel barrow
4. a spade
Which one of the following takes place during inhalation in human beings?
1. The lungs contract
2. The diaphragm flattens
3. The ribs move downwards
4. The diaphragm becomes domo-shaped
Which one of the following is a sign of a patient in the third stage of HIV/AIDS infection?
1. HIV test comes out negative
2. Signs and symptoms become visible
3. The patient cannot infect others
4. The patient suffers from opportunistic diseases
Which one of the following is a social effect of drug abuse?
1. Rape
2. Withdrawal symptoms
3. Hallucinations
4. Fits
Which one of the following diseases can be prevented by draining stagnant water around the homestead?
1. Malaria
2. Cholera
3. Typhoid
4. Tuberculosis
The pie chart below below shows the composition of gases in air.

Which of the following are the uses of gases G and J respectively?
1. Breathing and making electric tubes
2. Germination and making plant food
3. Putting out fire and making plant proteins
4. Preserving soft drinks and burning
Which one of the following media is the most effective method of educating the masses about HIV and AIDS?
1. Newspapers
2. Television
3. Radio
4. Video
The following are effects of HIV and AIDS;
1. low self esteem
2. loss of earnings
3. congestion in hospitals
4. increased school drop outs
5. secondary infections
  Which pair of the above effects affects the nation?
  1. (v) (ii)
  2. (i)(iii)
  3. (iii) (iv)
  4. (ii) (iii)
The chart below shows a simple classification of crops.

Which crop is correctly classified?
1. Rice
2. Cocoa
3. Barley
4. Wheat
The soil that makes the longest ribbons also;
1. has fine texture
2. bas large air spaces
3. dries fast
4. has the best drainage ability
Which one of the following is a use of moving air?
1. Moving wind mills
2. Blowing soil away
3. Felling trees
4. Blowing away roofs
Which one of the following maintenance practices is done when still using simple tools?
1. Cleaning after use
2. Sharpening cutting tools
3. Repairing tools
4. Proper storage
Standard six pupils set up an experiment as shown below.

Which one of the following conditions necessary for germination were they investigating?
1. Water
2. Air.
3. Warmth
4. Temperature
Which one of the following pairs of animals are omnivores?
1. Chimpanzee and giraffe
2. Pig and man
3. Zebra and lion
4. Hyena and kangaroo
The diagram below shows the beak of a certain bird.

The above beak is likely to belong to a;
1. hawk
2. hen
3. sunbird
4. duck
Some pupils mixed liquids E, F and G. Liquid E mixed with liquid F. Liquid G did not mix with liquid E and F. Which one of the following correctly represents liquid E, F and G respectively?
1. Water, cooking fat, fresh milk
2. Cooking oil, water, fresh milk
3. Water, fresh milk, cooking oil
4. Milk, cooking oil, water,
The following activities will pollute water except;.
1. oil spillage on water
2. excess usage of fertilizers on land
3. fumes from the factory chimneys
4. treated sewage disposed off in rivers
The tendency of a moving or stationery objects to resist change of position is known as;
1. force
2. inertia
3. friction
4. pressure
Which one of the following materials will not form a shadow when light is shone on it? Oil layer
1. White paper
2. Mirror
3. A glass lamp
4. A piece of wood
Which set of components of the environment below comprises of the major ones only?
1. Soil, plants, buildings
2. Animals, water, air
3. Rocks, animals, soil
4. Water, air, heat
The following signs and symptoms were observed on a patient:
1. severe headache
2. abdominal pain
3. fever
4. slight diarrhoea with blood stains
5. sores in the mouth
  The patient was most likely to be suffering from;
  1. malaria
  2. typhoid
  3. cholera
  4. bilharzia
The diagram below shows a simple electric circuit.

What object can be put at point X to make the bulb to light?
1. Plastic
2. Graphite
3. Rubber
4. Cloth
Which one of the following is not carried by the blood plasma?
1. Oxygen
2. Salts
3. Urea
4. Carbon dioxide
The diagram below shows a method of separating mixtures.

The above method is known as;
1. sieving
2. winnowing
3. filtration
4. decanting
Which pair of blood vessels is correctly matched with the type of blood they carry?

Deoxygenated blood Oxygenated blood

A Pulmonary vein Aorta

B Vena cava Vena cava

C Pulmonary vein Pulmonary artery

D Pulmonary artery Aorta
Which one of the following crop pests will attack a young kale plant after transplanting and cut the stem?
1. Army worm
2. Cutworm
3. Aphid
4. Stalkborer
Which one of the following pairs of plants stores food in the roots?
1. Carrots and irish potatoes
2. Irish potatoes and sweet potatoes
3. Sweet potatoes and cassava
4. Cassava and onions
Pupils placed a bottle top on water and it flowed as shown below. They then crushed and placed the same bottle top on the water again but it sank.

Which one of the following factors that affect sinking and floating was being investigated?
1. Size of material
2. Type of material
3. Shape of material
4. Mass of material
Which one of the following statements is correct about water?
1. Filtration makes water safe for drinking
2. Boiled hard water is safe for drinking
3. Boiling makes hard water difficult to lather
4. Soft water should not be boiled before drinking
Which one of the following attaches itself on the uterus wall to develop into a baby?
1. Ovum
2. Foetus
3. Embryo
4. Zygote
The diagram below shows a simple lever.

Which letter represents the position of the effort when in use?
1. F
2. G
3. E
4. H
In an investigation, pupils placed a mirror in a basin containing water to direct light to a white wall. The pupils were investigating,
1. bow light travels
2. refraction of light
3. reflection of light
4. making of a rainbow
Which one of the following groups of materials consists only of non-magnetic materials?
1. Nickel, aluminium, copper
2. Plastic, copper, aluminium
3. Paper, iron, glass
4. Staples, iron, chromium
The diagram below shows interdependence between plants.

The diagram shows that plants depend on others for,
1. shade
2. support
3. habitat
4. nutrients
Which one of the following methods of preserving food is both modern and traditional?
1. Salting
2. Using honey
3. Smoking
4. Drying
A beam balance is used for:
1. measuring the volume of different objects
2. measuring the height of different objects
3. measuring the weight of different objects
4. measuring the length of different objects

Marking Scheme

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Published in Class 8 End Term 2 Exams 2022 Set 2 with Answers

Tagged under

Thursday, 01 September 2022 08:49

Science Questions and Answers - Class 8 End term 2 2022 Set 1

Questions

Which come following parts of a flower produces sex cells?
1. Stigma and style
2. Antlers and ovary
3. Style and filament
4. Pollen grains and ovules.
Which one of the following vessels is correctly matched with its function?
1. Aorta - Transports blood away from the heart
2. Venacava - Transports blood from the heart.
3. Artery - Transports deoxygenated blood.
4. Vein - Transports Oxygenated blood.
Which one of the following is the best way of controlling parasites that causes irritation on livestock?
1. Handpicking
2. Spraying
3. Dipping
4. Deworming
Which of the following pairs of plants depends on other plants for support?
1. Tomatoes and passion
2. Mango and oranges
3. Passion and arrowroots:
4. Cassava and sweet potato
Which one of the following describes the best way of handling medicines at home?
1. Storing medicine near the source off heat.
2. Sharing medicine with the same ailment.
3. Using soft drink bottles to store liquid medicine.
4. Completing dosage even when one is feeling well.
The diagram below represents a setup that can be used to investigate a certain aspect of heat.

The heat reaches the metallic spring through
1. convection only
2. conduction and radiation
3. radiation only
4. conduction and convection.
Which one of the following plants are mainly grown to produce threads for making ornaments?
1. Cotton and flux,
2. Palm trees and sugarcane
3. Sisal and barley.
4. Pyrethrum and coffee.
Which one of the following is an adaptation of animals that mainly feed on flesh?
1. Strong hind legs.
2. Modified premolars and molars.
3. Streamlined body:
4. Strong hollow molars.
Which one of the following is an advantage of in-organic fertilizer?
1. Have long term effects.
2. Spread weeds.
3. Locally available.
4. Increases rate of production.
The diagram below represents a breathing system

Which is the main process that take place in part marked V?
1. Warming air.
2. Absorption of air.
3. Cleaning of air.
4. Storing of clean air.
The following were used to investigate factor that affects sinking and floating.
1. wooden spoon.
2. 1 piece of steel wool.
3. Water in a transparent basin.
  The factor investigated was
  1. shape of the material
  2. type of material
  3. size of material
  4. mass of material.
Which of the following materials have definite shape and mass?
1. Oxygen. oil, stones.
2. Steam, candle wax, leather.
3. Water, kerosene, diesel.
4. Nails, Ieaves, gravel.
Which one of the following diseases is correctly matched with the date they are immunized?

At birth Fourteen week

A Polio   Hepatitis B

B Tuberculosis   Measles

C   Yellow fever   Tetanus

D   Whooping cough   Polio
When modelling the solar system, which materials are used 10 mount sun and planets?
1. Glue and manilla paper.
2. Thorns and wires.
3. Plasticine and clay.
4. Paper mache and nails.
The quantity of matter in an object is called
1. Weight
2. friction
3. mass
4. magnetic
Which one of the following is a myth and misconception about HIV and AIDS?
1. HIV is mainly spread through both fluids.
2. AIDS develop in stages.
3. Unsterilized piercing objects may spread HIV virus.
4. Mosquito bite may spread HIV virus.
Which one of the following statements is true about weather instrument?
1. The tail of a windvane is smaller than the head.
2. Raingauge measures two aspects of weather.
3. Windsock mainly measures the strength of wind.
4. Scale of air thermometer reads from bottom to up.
The diagram below represents an excretory organ.

Name the parts labelled M
1. sweat glands
2. sweat pores
3. sweat duct
4. dermis,
Which pair of characteristics is common to lizard, toad, spiny ant cater and hawk?
1. Varying body temperature, breathe through lungs,
2. Lay eggs, have scales.
3. Varying body temperature, have scales
4. Lay eggs, breathe through lungs.
Which one of the following materials is not needed when investigating drainage in soil?
1. Cotton wool
2. Funnel
3. Collecting jars
4. Measuring jars.
In a certain activity, pupils were told to drop text book above their desks from different heights. This was to investigate
1. amplification of sounds
2. Types of sounds
3. pollution of sounds
4. types of special sounds.
Which of the following is the most appropriate event for creating public awareness on HIV/AIDS for the youth
1. Wedding ceremony.
2. Chief Baraza.
3. Job interview
4. Sports and games
In an activity to investigate types of soil erosion pupils poured water at different positions of a slanting soil surface with channels. Which type of soil erosion were they demonstrating?
1. Splash erosion.
2. Sheet erosion.
3. Gulley erosion.
4. Rill erosion,
Which changes of state of matter below require a substance to loss heat to the war surrounding?
1. Evaporation and melting
2. Freezing and evaporation.
3. Melting and condensation.
4. Condensation and freezing.
Which one of the following is not a reason why animals are fed commercial feeds?
1. To increase milk production.
2. To supplement other feeds.
3. Provide specific nutrients to animals.
4. Only given 10 animals under stall feeding,
Which one of the following is the main reason of spreading dry grass around the stem of young plants? To,
1. conserve moisture ;
2. control soil erosion
3. suffocate woods
4. add nutrients to the soil.
Which of the following is a way of using energy efficiently?
1. Cooking using firewood.
2. Using water to produce electricity.
3. Using improved jiko
4. Improving and network.
A lactating mother eat food rich in calcium and phosphorous i order to
1. Improve blood formation in the baby
2. Improve immunity of the baby.
3. Replace blood lost during giving birth
4. Help formation of teeth and bones of the baby.
Which of the following pairs of animals move by leaping and hopping?
1. Horse and kangaroo.
2. Grasshopper and toad.
3. Frog and ticks.
4. Cricket and chameleon,
The following figure shows a common sign among diseases caused by poor sanitation.

Which sign will it under R?
1. Skin rashes.
2. Violent diarrhoea.
3. Blood in the stool.
4. Pain in the joint.
Three of the following are uses of heat at home expect
1. Ironing clothes
2. Scaring away pests
3. Cooking
4. Warming ourselves
Which of the following is the correct procedure of separating of salt, rice husks and copper fillings?
1. Dissolving - filtering -- use of a magnet - Evaporation.
2. Use of magnet- dissolving - filtering - evaporation.
3. Winnowing - dissolving - filtering - evaporation.
4. Use of magnet - dissolving - sieving - evaporation.
Which two types of food can be preserved by drying?
1. Milk and fish,
2. Coffee berries and vegetables,
3. Arrow roots and honey.
4. Meat and fruits. :
A child has the following signs and symptoms.
1. Sores at the corner of the mouth.
2. Slow growth.
3. Swollen face and checks.
  The disease is likely to be
  1. marasmus
  2. anaemia
  3. ricket
  4. kwashiorkor
Which of the following materials is correctly matched?

Magnetic Non magnetic

A Razor blades Copper wire

B Office pin Steel wool

C Hair strand Aluminium foil

D Wooden rod Rubber bands
Which one of the following is not a way of conserving soil?
1. Ploughing along the contour.
2. Practising rotational grazing.
3. Burning long bushes to control weeds,
4. Disposing kitchen refuse in the farm.
The diagram below represents a periscope

Which letter represents the image and object respectively?
1. V and B.
2. W and X
3. X and W
4. V and W
The following plants depends on animals for food except
1. bladderwort
2. sundow
3. pitcher plant
4. waterlily.
Which of the following is best way of removing permanent hardness in water?
1. Adding chemicals.
2. littering using clean materials.
3. Using high temperature:
4. Warming water.|
The energy transformation that take place when dry cells are connected to a bulb is
1. Chemical - electrical - light - heat
2. Electrical - chemical -- heat - light
3. Chemical - electrical - heat - light
4. Electrical - heat - chemical - light
Which of the following is the characteristic of soil with low capillarily?
1. Coarse particles.
2. Sticky when wet
3. Smooth texture.
4. Best in farming.
In which of the following activities is friction least useful?
1. Riding a bicycle.
2. Writing on exercise books.
3. Pushing a crate of soda on the floor.
4. Skating along the tarmac road.
Which of the following is the second last stage of birth process?
1. Release of afterbirth.
2. Dilation of cervix.
3. Bursting of amnion sac
4. Culling of umbilical cord.
Which of the following liquids will form one layer when put in a glass?
1. Ink and oil.
2. Diesel and paraffin.
3. Milk and oil.
4. Spirit and kerosene,
In an activity, pupils collected the following materials.
1. Drycells.
2. Two wires of 15cm each.
3. Different materials.
4. A bulb.
  What were they likely to investigate?
  1. Good and poor conductors of electricity.
  2. Making a simple circuit
  3. Good and poor conductors of heat
  4. How current flow in different materials.
Which one of the following is a way of maintaining all simple tools?
1. Oiling metallic parts,
2. Sharpening cutting tools.
3. Proper storage:
4. Using regularly
Which of the following sources of current electricity uses chemicals?
1. Dynamo and solar panels.
2. Dry cells and car ballery:
3. Geothermal and biogas.
4. Dynamo and dry cells.
Which one of the followng is not a sign of food poisoning?
1. Headache
2. Dehydration
3. Fever
4. Diarrhoea
Which of the following parts of seed is correctly matched with its function?
1. Radicle.- forms the seed leaf.
2. Cotyledon - allow entry of water
3. Hillum -- store food
4. Plumule -- forms the embryo
The diagram below shows a simple lever

Which of the parts labeled E, G,T and II shows the fulcrum?
1. H
2. F
3. E
4. G.

Marking Scheme

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Published in Class 8 End Term 2 Exams 2022 Set 1 with Answers

Tagged under

Wednesday, 31 August 2022 06:19

Science & Technology/ Agriculture/Home Science Questions with Answers - CBC Grade 4 End of Term 2 Exams 2022 SET 2

QUESTIONS

SECTION A: SCIENCE AND TECHNOLOGY (20mks)

Name the type of teeth used for cutting and biting food.(1mk)
Draw and name any two protective clothing (4mks)
What are water-bone diseases?(1mk)
Write two characteristics of plants as living things. (2mks)
Name any two digital devices (2mks)
A____helps one to point or select items on the computer screen. (1mk)
List the three states of matter. (3mks)
Reflected sound is also known as___(1mk)
What is force?(1mk)
List any to materials that can float in water. (2mks)
Name any two musical instrument that produce sound. (2mks)

SECTION B: AGRICULTURE

When transplanting fruit seedlings we should select seedlings that are___(1mk)
Using water in the farm without wasting is known as water___(1mk)
List three examples of domestic animals (3mks)
Seeds of cereals are known as___(1mk)
Which type of soil drains the least amount of water?(1mk)
The meat from cattle is known as____ (1mk)
Name two vegetable crops. (2mks)
Study the pictures below and aname the part eaten (2mks)
Moles arte known to destroy the___ of crops. (1mk)
Manure that is made from decomposed plants and animal waste is known as___ (1mk)
List three used of water in farming. (3mks)
Name any three fruits that have any seeds. (3mks)

SECTION C: HOMESCIENCE

Name two things you should consider when buying food from a general grocery. (2mks)
Name the three food groups. (3mks)
Name the fragile itensils shown in the pictures below. (3mks)
List two things that should not be used when cleaning glasses. (4mks)
Name the method used in cooking the foods named below. (4mks)
1. Chapati -
2. Githeri
3. Sausages -
4. Cakes.
Name three needlework tools. (3mks)
List two games that you play at school. (2mks)

MARKING SCHEME

SCIENCE AND TECHNOLOGY	AGRICULTURE	HOMESCIENCE
Incisors Mark relevant answer These are diseases casued by drinking contaminated water They remove waste They reproduce computer camera mobile phone television mouse liquid solid gases echo a push or pull paper plastic pegs dry leaves guitar, drum, piano	healthy conserving cow hen goat rabbit sheep donkey grains clay beef tomatoes cabbage carrots leaves roots roots compost manure watering plants & animals washing farm building and tools mixing chemicals passion fruit guava tree tomatoes	expiry date packaging weight proteins carbohydrates vitamins a pot a guard sand steel wool shallowing frying boiling deep frying baking tape measure needle thread scissors thimble seam ripper mark relevant answer

Published in CBC Grade 4 End Term 2 Exams 2022 SET 2 with Answers

Tagged under

Tuesday, 30 August 2022 07:05

Science Questions and Answers KCPE 2022 Prediction Papers Set 4

Questions

Which one of the following is not a function of the amniotic fluid?
1. Allows for the free movement of the foetus.
2. Prevents the foetus from shock.
3. Moistens the foetus.
4. Provides food nutrients to the foetus.
Which of the following is not a sexually transmitted infection?
1. Bilharzia
2. Chancroid
3. Syphilis
4. Gonorrhea.
Blood from the lungs enters the heart through the
1. aorta
2. pulmonary artery
3. vena cava
4. pulmonary vein
Which of the following crop pests makes large holes in leaves?
1. Weevils
2. Weaver birds
3. Aphids
4. Cutworms.
The following are some of the effects of drug abuse.
1. Unconsciousness
2. Brain damage.
3. Poor relationship with family members.
4. Rape.
  Which pair consists of the social effects of drug abuse?
  1. (i) and (iii)
  2. (i) and (ii)
  3. (iii) and (iv)
  4. (ii) and (iv)
Which of the following parts of the reproductive system produces sex cells?
1. Vagina and penis.
2. Testis and ovary.
3. Uterus and urethra.
4. Oviduct and penis
The diagram below shows parts of a bean seed.

Which letter represents the seed leaves?
1. M
2. L
3. N
4. O
The chart below shows classification of plants.

Which group of plants were wrongly classified?
1. Carrot, kales, wandering jew
2. Kales, bananas, fern.
3. Fir, banana, fern.
4. Wandering jew, carrot, fir.
During a Science practical lesson, class six pupils put maize seeds in boiled water and added to it a layer of cooking oil. What condition necessary for germination were they investigating?
1. Warmth
2. Moisture
3. Light
4. Air.
Mass is measured using a
1. spring balance
2. newton
3. standard weight
4. weighing scale
Which one of the following is not a living component of the environment?
1. Earthworms
2. Cactus
3. Water
4. Bacteria.
Class four pupils put soil in a clear container and added water. They stirred the mixture then left it to settle. They investigated all the following components except
1. air
2. mineral particles
3. water
4. organic matter
The diagram below shows a compost heap.

Which letter represents the layer that consists of the old compost manure?
1. Y
2. X
3. W
4. Z
A mixture of husks and maize flour can be best separated by
1. filtering
2. sieving
3. winnowing
4. decanting.
What is the total percentage of the two gases used by plants to make food?
1. 1.0%
2. 78.03%
3. 21.03%
4. 99%
The diagram below shows a simple tool.

Which pair of letters represents parts on which friction has to be increased for the lever to work effectively?
1. G and E
2. F and E
3. G and H
4. J and F
Rollers are used to
1. reduce the weight of an object
2. reduce the force that hinders motion
3. increase the friction of an object
4. reduce the mass of an object
Which one of the following is the third step when modelling the solar system?
1. Pasting manila paper on the soft board.
2. Modelling the sun and the planets.
3. Drawing circles to represent the orbit.
4. Pasting name tags against each planet.
The diagram below shows a simple weather instrument.

The weather instrument above works under the principle that
1. air exerts pressure
2. air is a good conductor of heat
3. liquids contract when cooled
4. matter expands when heated.
Which one of the following is not an effect of parasites on livestock?
1. Irritation.
2. Poor quality products.
3. Increased appetite.
4. Anaemia.
Which one of the following is the most expensive method of grazing?
1. Strip grazing.
2. Herding
3. Paddocking.
4. Stall feeding.
The following are signs and symptoms of certain water-borne diseases.
1. Blood in urine and faeces
2. Muscular pains.
3. Red spots on the chest.
4. Itching at the anus.
  Which ones are not signs of typhoid?
  1. (ii) and (iii)
  2. (i) and (iv)
  3. (ii) and (iv)
  4. (i) and (iii)
Which of the following methods of food preservation works the same way as use of honey?
1. Smoking
2. Refrigeration
3. Salting
4. Drying.
Which one of the following is a common characteristic in rat, duck and gecko?
1. They lay eggs.
2. Their bodies are covered with scales.
3. They have constant body temperature
4. They breathe through lungs.
After fertilization, all the following parts of a flower dries up except the
1. style
2. petals
3. sepals
4. stigma.
Which of the following is not an immunizable disease?
1. Hepatitis B
2. Bilharzia
3. Measles
4. Tuberculosis
The following are importance of taking a HIV test except that it helps
1. in administering proper treatment
2. to know one’s status
3. in behavioural change
4. to overcome fear.
Which one of the following food nutrients is not absorbed in the intestine?
1. Fats and oils.
2. Carbohydrates
3. Proteins
4. Calcium.
Standard six pupils poured water on a flat soil surface. They used a bottle which had a hole in the lid as shown below.

Which type of erosion were they likely to be investigating?
1. Rill erosion
2. Gulley erosion
3. Splash erosion
4. Sheet erosion.
In a convection box, a burning candle is mainly used to
1. produce smoke
2. light the box
3. warm the air
4. colour the air.
Which one of the following is a poor conductor of electricity?
1. Pencil
2. Razor blade
3. Copper iron
4. Marble.
All the following animals have the same way of movement except
1. scorpion
2. cockroach
3. ant
4. chicken.
Which of the following liquids are correctly classified?

Immiscible Miscible

A Petrol, cooking oil Spirit, diesel

B Milk, kerosene Ink, water

C Water, milk Spirit, kerosene

D Petrol, ink Diesel, milk
Water vapour has definite
1. density
2. mass
3. volume
4. shape.
Two pieces of stones were placed in tins and balanced on a see-saw as shown below.

What is likely to happen if stone J is broken into small pieces?
1. K will move upwards.
2. J will move downwards.
3. The see-saw will tilt towards K.
4. There will be no change
Which one of the following is the best way of controling both external and internal livestock parasites?
1. Clearing bushes around the farm.
2. Practising rotational grazing.
3. Deworming.
4. Dipping and spraying.
All the following are characteristics of cumulus clouds except that they
1. indicate fine weather
2. appear low in the sky
3. have flat base
4. look like bundles of cotton wool.
The following are all excretory products except
1. excess salt
2. lactic acid
3. faeces
4. carbon dioxide.
Which of the following water pollutants is likely to increase the growth of water weeds?
1. Oil spillage.
2. Floods.
3. Excess farm chemicals.
4. Raw industrial sewage.
The diagram below shows parts of the skin.

Which letter represents the part that produces sweat?
1. H
2. G
3. E
4. F
A patient with pale eyes and rapid heartbeat should take a diet rich in
1. calcium
2. iron
3. proteins
4. fibres and water.
Which of the following animal feeds is not suitable to use as pasture?
1. Desmodium
2. Napier grass
3. Lucerne
4. Kikuyu grass
A mouse was seen basking in the sun. It is true to say that the body temperature of the mouse
1. rose
2. dropped
3. dropped and then rose steadily
4. did not change.
Which one of the following is not a fibre crop?
1. Sunflower
2. Sisal
3. Cotton
4. Flax
Which one of the following is not true about the first stage of HIV infection?
1. It has no visible signs.
2. The patient has no AIDS.
3. HIV shows positive results.
4. It is most dangerous stage.
Which one of the following is not a function of the largest component of blood?
1. Maintains blood pressure.
2. Suspends red blood cells.
3. Transports waste products.
4. Helps in clotting of blood.
The following materials are needed when investigating refraction of light except
1. pencil
2. water
3. mirror
4. coin.
Which one of the following is not a source of heat?
1. Moon
2. Sun
3. Electricity
4. Gas.
Which of the following groups of materials cannot sink in water?
1. Marble, feathers and paper.
2. Stone, rice and pin.
3. Leaf, bottle and wire.
4. Wood, leaf and rubber.
Class five pupils placed a glass full of ice cubes in the sun.

Which of the following processes did not take place after some time?
1. Melting.
2. Expansion.
3. Evaporation.
4. Condensation.

Marking Scheme

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Published in KCPE 2022 Prediction Papers Set 4

Tagged under

Tuesday, 30 August 2022 07:01

Science Questions and Answers KCPE 2022 Prediction Papers Set 3

Questions

Objects like wax, plastic and wood normally float on water. This is possible because of their?
1. Size
2. Material
3. Shape
4. Weight
To protect themselves from noise pollution, workers in noisy factories are provided with
1. Ear buds
2. Gas masks
3. Ear plugs
4. Ear phones
Which one of the following animal feeds is a source of proteins?
1. Lucerne
2. Grass
3. Molasses
4. Sweet potato vines
Cirrhosis is a disease of the liver which is commonly caused by excessive use of
1. smoking of tobacco
2. drinking of beer
3. chewing of miraa
4. inhaling of cobbler's glue
One of the following animal parasites cannot be controlled by drenching or dosing, which one is it?
1. Round worms
2. Lung worms
3. Liver fluke
4. Tsetse flies
Which one of the following substances have definite size and shape?
1. Wax and steam
2. Petrol and oxygen
3. Stone and glass
4. Milk and water
Study the diagram below of a simple rain gauge.

The part marked T is placed underground mainly to
1. prevent evaporation of collected water
2. collect as much rain water as possible
3. make it durable
4. prevent the container from direct sunlight
Which one of the following is not an air pollution?
1. Loud music
2. Aerosal sprays
3. Excessive dust
4. Farm Yard Manure
In which one of the following pairs of levers is the fulcrum between the load and the effort when they are in use?
1. Wheelbarrow and space
2. Claw hammer and wheel barrow
3. Crow bar and spade
4. Crow bar and claw hammer
Which one of the following statements is true about platypus, bat, ostrich and toad. All of them
1. breath through lungs
2. give birth to young ones
3. have body temperatures that varies with the surrounding
4. spend part of their life on dry land
The following are ways in which plants adjust themselves to grow in various habitat:
1. Succulent
2. Flexible stems
3. Thick and waxy cuticles
4. Spongy stems
5. Needle-like leaves
  Which set of adjustments are for plants suitable to grow in dry areas?
  1. ii.iv.v
  2. i, iii,v
  3. ii,iii, iv
  4. ii,i,iv
Which one of the following is not correct statement about the force that opposes motion? The force
1. produces unwanted heat
2. increase the effort required for moving a load
3. makes the load lighter
4. can be reduced by using rollers.
The transfer of heat by convection is possible through
1. gases only
2. liquid and gases
3. solids and liquids
4. gases and vacuum
The diagram below shows an improved jiko.

The part marked T is made of clay in order
1. make the jiko durable
2. make the charcoal light faster
3. reduce the space for charcoal
4. reduce the amount of heat loss
The following are characteristics of a certain type of cloud:
1. Flat-bottomed
2. High in the sky
3. White in colour
  Which statement below is true?
  1. The characteristics are for nimbus clouds
  2. The cloud gives rise to rainfall
  3. The cloud also looks like mountains
  4. This type of cloud also looks like bundles of cotton
Which of the following is not an excretory organ?
1. Kidney
2. Skin
3. Anus
4. Lungs
Class five pupils of Jamhuri Primary School did an experiment. They dropped some pieces of papers on burning flames of fire. What were they investigating?
1. Convection in liquid
2. Gases occupy space
3. Air in motion
4. Convection in gases
Which one of the following vaccine is correctly matched with when it is administered? Vaccine When administered

Vaccine When administered

A 1st DPT At birth

B 2nd Polio vaccine 10 weeks

C 3rd Hepatitis B 14 weeks

D 3rd DPT 14 weeks
Which one of the following components of the environment do plants and animals depend on directly for their survival?
1. Soil and water
2. Air and soil
3. Water and air
4. Air only
The amount of matter in a substance is measured using all the following units except
1. Grammes
2. Kilograms
3. Newtons
4. Tonnes
A certain weed was observed with the following characteristics
1. Purple flowers
2. Thorns on the stems
3. Yellow fruits when ripe
  The weed was likely to be
  1. thorn apple
  2. wandering jew
  3. oxalis
  4. sodom apple
Which of the following pair processes involves loss of heat to the surrounding?
1. Freezing and melting
2. Melting and evaporation
3. Freezing and condensation
4. Condensation and evaporation
Which one of the following practices is an economical way of using water?
1. Harvesting rain water
2. Mulching and shading
3. Constructing dams to collect rain run off water
4. Practising drip irrigation
The following are social effects of drug abuse except
1. truancy
2. lack of concentration
3. drug induced accidents
4. marital conflicts
In a food chain, which of the following organism is a secondary consumer?
1. Cabbage
2. Grasshopper
3. Hawk
4. Chicken
The following crop pests are correctly matched with the part of the crop they attack except Crop pest Part attacked
Crop pest Part attacked
1. Stalk borer Stem
2. Army worm Leaves
3. Aphids Seeds
4. Cutworm Stems
Which of the following pollutes both water and soil?
1. Oil spillage
2. Controlled use of farm chemicals
3. Domestic wastage
4. Industrial waste gases
The chart below represents the characteristics of amphibians, fish and reptiles.

What do N and O represent?
1. Laying eggs Warm blooded
2. Live in water Scales
3. Cold blooded Breath by lungs
4. Scales Cold blooded
As Mame Brian was chopping potatoes she cut her finger with a knife. Which component of blood helped to stop the bleeding?
1. Plasma
2. Platelets
3. White blood cells
4. Red blood cells
Which one is not a use of water in recreation?
1. Irrigation
2. Boat racing
3. Surfing
4. Swimming
Which one of the following is a nonluminous source of light?
1. Moon
2. Sun
3. Stars
4. Fire flies
The pie chart below shows a composition of air.

Which letter represent the part used by premature born babies in incubators?
1. W
2. L
3. K
4. Q
Below are statements about second class levers. Which one is correct?
1. Load distance is equal to effort distance
2. Load distance is always greater than effort distance
3. Effort distance is always greater than load distance
4. Effort distance is always twice the load distance
Which one is not a minor plant nutrient?
1. Chlorine
2. Carbon
3. Iron
4. Manganese
Expectant mothers mainly feed on food rich in calcium and vitamin D for?
1. Help to prevent rickets to the foetus
2. Providing energy to the foetus
3. For proper bones formation of the foetus
4. For growth and development of the foetus
Which one of the following is observed in a container that has been used to boil hard water?
1. Scum
2. Bubbles
3. Fur
4. Soap deposits
The diagram below shows a glass which was put inside another glass and got stuck.

What should be done to separate the two glasses?
1. Put the glasses into boiling water
2. Put hot water in the inner glass
3. Put the glass in cold water
4. Immerse the outer glass in hot water
A simple electric circuit should have the following except
1. bulb
2. fuse
3. wires
4. dry cells
The amount of space occupied by a body is its
1. mass
2. pressure
3. volume
4. weight
The diagram below shows a home-made water filter

Which of layer represents charcoal?
1. J
2. K
3. L
4. M
The following are problems related to teeth except
1. bad breath
2. bleeding gums
3. dental floss
4. cavities
The following are ways of maintaining simple tools except
1. oiling
2. cleaning tools after use
3. sharpening cutting tools
4. using them regularly
Which one of the following livestock parasites attacks only the small intestines?
1. Hookworms
2. Lungworms
3. Tapeworms
4. Roundworms
Which of the following mixtures can be separated by dissolving, filtering and evaporation?
1. Iron fillings, flour and salt
2. Salt and sugar
3. Kerosene, water and turpe ntine
4. Sand and sugar
The diagram below represents a set up that is used to investigate a certain aspect of light.

The aspect investigated is
1. light travels in a straight line
2. refraction
3. reflection
4. passage of light through materials
Large furrows in the soil indicate
1. rill erosion
2. gulley erosion
3. splash erosion
4. sheet erosion
Which one of the following helps us to drink using a straw?
1. Force of gravity
2. Adhesion
3. Capillarity
4. Air pressure
The best method of controlling human intestinal worms is by
1. deworming
2. vaccination
3. rotational grazing
4. proper sanitation
Standard four pupils set up the experiment shown below.

The pupils concluded that pressure in liquids
1. increase with depth
2. decrease with height
3. is equal at the same height
4. is the same in all directions
A fish is able to remain a float on water even if it is not swimming due to the presence of
1. lateral line
2. air bladder
3. air sacs
4. fins

Marking Scheme

D
B
A
C
A
A
B
D
D
C
D
C
B
A
B
A
D
C
C
A
B
A
B
B
B
C
B
A
A
A
D
C
B
A
A
D
D
B
A
A
C
C
D
B
B
D
D
A
A
A

Published in KCPE 2022 Prediction Papers Set 3

Tagged under

Tuesday, 30 August 2022 06:57

Science Questions and Answers - KCPE 2022 Prediction Papers Set 2

Questions

Clouds that are dark grey in colour
1. indicate fine weather.
2. have a flat base.
3. appear low in the sky.
4. look like bundles of cotton wool.
The following are advantages of soft water except one. Which one is it?
1. Less soap is used.
2. Does not contain minerals.
3. Lathers easily with soap.
4. Less energy is used when washing.
Soil pollution is caused by all the following except
1. treated sewage.
2. floods
3. acid rain.
4. excess fertilizers.
Which among the following animals has scales on its body?
1. Newt
2. Lizard
3. Toad
4. Whale
Class four pupils set up an experiment as shown below.

Which component of soil were they investigating?
1. Water and air.
2. Living organisms.
3. Organic matter.
4. Mineral salts.
Soil erosion depends on all the following factors except
1. the slope of the land.
2. type of soil in an area.
3. mineral content of the soil.
4. plant cover in an area.
Plants depend on each other for the following except
1. habitat
2. shelter
3. support
4. air
Which of the following mixtures can be separated by sieving?
1. Flour and maize grains.
2. Sand and water.
3. Sorghum and husks.
4. Beans and maize.
An insect pollinated flower has one of the following characteristics. Which one?
1. Has powdery pollen grains.
2. Produces nectar.
3. Has dull petals.
4. Produces many pollen grains.
Which pair of liquids will mix with milk and engine oil respectively?
1. Methylated spirit, diesel.
2. Cooking oil, water
3. Ink, water.
4. Diesel, water.
Which of the following signs of ill health in livestock is not an immediate sign?
1. Coughing
2. Stunted growth.
3. Blood in stools.
4. Rough coat.
Class five pupils carried out the experiment below.

After sometimes the wax melted and the pin fell off. This was mainly because of
1. conduction of heat
2. radiation and convection of heat.
3. dispersion of heat.
4. convection of heat.
Which of the animals below is a herbivorous animal?
1. Pig
2. Dog
3. Chimpanzee
4. Hippopotamus
Which method of food preservation below is both a modern and a traditional method?
1. Refrigeration
2. Salting
3. Smoking
4. Use of low temperatures
Among the following examples of states of matter, which one does not have definite volume?
1. Sand particles.
2. Water.
3. Smoke.
4. Ice
The main reason why mothers are advised feed their infants on breast milk is because breast milk
1. is easy to digest.
2. is free from diseases.
3. boosts the infants immunity
4. is wholesome at right temperature.
Which one of the following manures release nutrients fast into the soil for plants?
1. Farm yard manure.
2. Compost manure.
3. Green manure.
4. Urea.
All the following excretory products are removed by the skin except
1. excess water.
2. excess salts.
3. lactic acid.
4. carbon dioxide.
The diagram below represents a plant that is able to grow in a dry habitat.

Which one of the following is not an adaptive feature found in the above plant?
1. Green stem for making food.
2. Thick waxy cuticle on the stem.
3. Succulent stem for storing water.
4. Has thin leaves to make food.
Which group below consists of only diseases Which oron below that are immunisable?
1. Whooping cough, Tuberculosis, Bilharzia
2. Measles, Tetanus, Malaria.
3. Yellow fever, Tuberculosis, Diphtheria.
4. Cholera, Malaria, Poliomyelitis
Which one of the following pairs of plants is correctly matched with the type of root system?
Tap root Fibrous roots
1. Grass Maize
2. Blackjack Cabbage
3. Coconut Acacia
4. Kales Onions
In a food chain green plants represent the
1. primary consumers.
2. secondary consumers.
3. primary producers.
4. tertiary consumers.
Which one of the following livestock parasites attacks the liver and lungs of livestocks?
1. Liverfluke
2. Tapeworms
3. Lungworms
4. Hookworms
The diagram below shows an excretory system in human being.

The parts labelled W, X and Y respectively are:
1. Kidney, bladder, urethra
2. Urethra, kidney, ureter
3. Ureter, bladder, urethra
4. Urethra, bladder, ureter
Three of the following are all illegal drugs. Which one is not?
1. Bhang
2. Alcohol
3. Cocaine
4. Heroin
Soil conservation is done through the following ways except one. Which one?
1. Mulching.
2. Planting trees.
3. Ploughing across the contours.
4. Not burning vegetation cover.
The crop pest that cuts the stems of seedlings is called
1. cutworm
2. aphids
3. weevil
4. stalk-borer
A person in the incubation stage of HIV infection will show
1. signs and test negative.
2. no signs and test negative.
3. signs, symptoms and test positive.
4. no signs, no symptoms and test positive.
A bird that has flat serrated beak is likely to feed on
1. nectar
2. grains
3. filtering foods from water
4. flesh
Educating masses is a way of controlling the spread of HIV and AIDS. It can be carried out through all the following ways except
1. public rallies
2. job interviews
3. seminars
4. weddings.
Which group of animal feeds below provides livestock with mineral salts only when fed?
1. Green fodder and honey.
2. Bonemeal and salt lick.
3. Bran and mollases.
4. Fish meal and lucerne.
Which one of the following parasites does not attack pigs?
1. Louse
2. Flea
3. Mite
4. Ticks
The diagram below shows a weather instrument made by std. 5 pupils.

The weather instrument did not function wel! because
1. they used a scale reading from top to bottom
2. they used a narrow straw.
3. they used a thin walled glass bottle.
4. they used coloured water.
Which of the following transformation of energy occurs in the electromagnet?
1. Electrical Magnetic Chemical Heat
2. Chemical Electrical Magnetic Light
3. Chemical Electrical Electromagnet
4. Electrical+Chemical Magnetic
A machine
1. reduces the amount of work.
2. increases effort used.
3. makes work easier.
4. increases the amount of work done.
A class 7 pupil tried to push a box towards the direction shown by force.

Which arrow shows the direction of friction force?
1. M
2. Z
3. L
4. K
The following animals have same way of movement except
1. flea
2. ladybird
3. wasp
4. butterfly
In which of the following processes is energy correctly classified under renewable and non-renewable?
Renewable Non-renewable
1. Wind Charcoal
2. Coal Petrol
3. Natural gas Firewood
4. Biogas Diesel
Which of the following is not a symptom of food poisoning?
1. Fever
2. Pain in joints
3. Diarrhoea
4. Vomiting
Which one of the following is not an effect of livestock diseases?
1. Lower yields.
2. Red iced quality of products.
3. Stunted growth.
4. Transmission diseases to human beings.
Which one of the following is not an air pollutant?
1. Burning tyres.
2. Sewage effluents.
3. Vehicle exhaust fumes.
4. Industrial gases.
During breathing out
1. diaphragm flattens,
2. lungs expand.
3. ribs move upwards and outwards.
4. diaphragm becomes dome shaped.
The diagram below shows a set up made by std. 5 pupils.

The process investigated is
1. evaporation
2. condensation
3. convection
4. freezing
Which pair of activities below requires streamlining of the body to reduce friction?
1. Swimming and flying.
2. Reproduction and flying.
3. Feeding and swimming.
4. Reproduction and feeding.
The implantation of the foetus takes place in
1. fallopian tube.
2. uterus.
3. vagina.
4. oviduct.
The two gases that dissolve in water to make acid rain are:
1. Sulphur dioxide and carbon dioxide.
2. Carbon monoxide and nitrogen
3. Sulphur dioxide and nitrogen.
4. Oxygen and carbon dioxid
To gei extra iron, an expectant mother should feel on
1. ugali
2. spinach
3. potatoes
4. Bananas
The two liquids that can be used as lubricants are
1. engine oil and grease.
2. diesel and grease.
3. petrol and diesel.
4. engine oil and petrol
When an arrow of a windvane points to the East, the wind must be blowing from
1. East
2. West
3. North
4. South
Which of the following animals is a herbivore?
1. Chimpanzee
2. Zebra
3. Pig
4. Tiger

Marking Scheme

C
B
A
B
C
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D
A
B
A
B
B
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D
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C
D
D
D
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D
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A
D
B
C
A
D
C
B
B
D
A
C
C
B
A
D
B
C
B
C
B
A
B
A
B
A
A
B

Published in KCPE 2022 Prediction Papers Set 2

Tagged under

Tuesday, 30 August 2022 06:53

Science Questions and Answers - KCPE 2022 Prediction Papers Set 1

Questions

Which one of the following pairs of blood vessels carries blood from the lungs to the heart and from the heart to the body respectively?
1. Pulmonary vein and aorta.
2. Vena cava and aorta.
3. Pulmonary artery and aorta.
4. Aorta and vena cava.
During birth, the following procedures take place
1. The baby comes out through the vagina.
2. The uterine wall contractions cause labour pains.
3. The amnion is broken and amniotic fluid is released
4. The umbilical cord is tied and then cut
  Which of the following are in their CORRECT order?
  1. (ii)(iii) i)(iv)
  2. (ii)(iii)(iv) (i)
  3. (iii)(ii)(i) (iv)
  4. (iii)(ii)(iv)(i)
A ship will float on water because of its
1. size
2. shape
3. material
4. weight
When breathing in
1. the ribs move upwards and inwards.
2. the volume of the chest decreases.
3. pressure in the lungs decreases.
4. he diaphragm gets dome-shaped
Which one of the following shows the CORRECT urine passage from the kidneys during excretion?
1. Ureter → bladder → urethra
2. Urethra →bladder →ureter
3. Bladder → ureter → urethra
4. Bladder → urethra → ureter
The illustration below is a wind vane made from locally available materials

Which one of the following statements about the instrument is INCORRECT?
1. It measures the direction of the wind.
2. Its arrowhead points to the direction where the wind is going to
3. The arrowhead should be smaller than the tail.
4. It should be placed far away from tall buildings and trees.
Which one of the following vaccines is administered at birth?
1. DPT
2. BCG
3. Antimeasles
4. Antipolio
One of the following animals does NOT have mammary glands. Which one?
1. Whale
2. Dolphin
3. Shark
4. Seal
Which one of the following types of teeth is NOT correctly matched with its function?

Types of teeth Function

A Canine Cutting

B Incisor Biting

C Pre-molar Chewing

D Molar Grinding
Cross pollination is the transfer of pollen grains from
1. the anthers to the stigma.
2. the anthers of one flower to the stigma of another flower in the same plant. –
3. the anthers of one flower to the stigma of another flower on a different plant of the same type.
4. one flower to another on a different plant of a different kind
The illustration below shows classification of plants.

Which of the following CORRECTLY shows an example from each group of the classification shown?

W X Y

A Maize Fern Cypress

B Lichen Algae Mushroom

C Beans Cactus Puffballs

D Acacia Cedar Toadstool
Which one of the following is the function of white blood cells? :
1. Combine with oxygen.
2. Fight disease causing germs.
3. Carry digested food materials.
4. To clot blood when injured.
Which one of the following reproduction Processes takes place immediately after the sperm cell has united with the ovum?
1. Fusion
2. Fertilization
3. Ovulation
4. Implantation
Children born to mothers who smoke a lot during pregnancy are LEAST likely to
1. be underweight
2. have weak immunity:
3. be strong and healthy.
4. have poor mental growth."
Dairy milk and mutton are MOST likely to be obtained from –
1. goats only
2. cows only
3. sheep only
4. all of the above
Which one of the following shows a list of drugs which are NOT illegal in Kenya?
1. Bhang, mina, cocaine
2. Tobacco, heroin, alcohol
3. Cocaine, tobacco, bhang •
4. Miraa, tobacco, alcohol
The MOST effective way of controlling HIV and AIDS among married couples is by
1. abstinence
2. wing condoms
3. having one partner
4. being faithful
Which one of the following shows a list of major non-living components of the environment ONLY?
1. Water, air and soil
2. Plants and animals
3. Sound, light and heat
4. Food, buildings and soil
Which one of the following statements does NOT show interdependence among plants and animals?
1. Animals getting shade.
2. Animals getting shelter on trees.
3. Animals getting carbon dioxide from plants,
4. Plants getting pollination services from
In a feeding relationship yellow cabbage can it be grouped under
1. decomposers
2. primary consumers
3. producers
4. tertiary consumers
The illustrations below was set up by standard six pupils to carry out an investigation on some aspect of soil

If the two groups were to learn from each other, what common mistake did they make? They used
1. different shapes of collecting jars.
2. different sizes of tunnels.
3. different types of soils. .
4. same sizes of cotton wool.
Mater can change from one state to another as shown below.

Which two processes as shown in the illustration above require an increase in temperature?
1. J, K
2. I,L
3. L, M
4. M, K
Thus bulb shown can reach heat to the hands below it by ___process.
1. conduction
2. convection
3. radiation
4. convection and radiation
Below are characteristics of matter:
1. Definite shape
2. Definite size
3. Define mass :
  Which two of the above will BEST describe a soda?
  1. (i) and (ii)
  2. ii) and (iii)
  3. (iii) and (i)
  4. None
Different strings of the same thickness but different lengths were stretched on two wooden plunks nailed together as shown below.

Which wire produced the highest sound when gently plucked?
1. Q
2. S
3. P
4. R
The following pests are matched with the part of the plant it attacks. Which one has been INCORRECTLY marked? Types of pest Part of plant attacked

Types of pest Part of plant attacked

A Aphids grains of all kind

B Cutworms stems of young plants

C Weaver birds grains of cereals.

D Stalk borers inside of the stem
Which one of the following is NOT a function for the leaves of a grown plant?
1. Absorption
2. Breathing
3. Transpiration
4. Photosynthesis
Which one of the following CORRECT shows a list of food crops only one
1. Legumes, fruits, tuber crops and cereals.
2. Vegetables, legumes, fibre crops and cereals.
3. Cereals, legumes, oil crops and vegetables
4. Legumes, beverages, vegetables and fruits
The second and seventh planets in the solar system are
1. Earth and Uranus
2. Venus and Saturn
3. Earth and Neptune
4. Venus and Uranus
From the illustration of the drawings shown below, it is possible to conclude that
1. liquids occupies space.
2. pressure in liquids is equal at the same depth.
3. pressure in liquids increases with depth.
4. liquids take the shape of the container
Plants adapted to little or no rain areas do NOT
1. brave large Nat leaves
2. roll or fold their leaves
3. have needle-like leaves
4. lose or shed their leaves
One of the following is NOT a sign unhealthy crop: Which one?
1. Stunted growth
2. Nice colouration on leaves and stems
3. Curled leaves
4. Willing
The type of beak shown below is well suited for
1. sucking nectar
2. filter feeding
3. eating grains
4. eating flesh
Which one of the following is NOT an effect of livestock diseases?
1. Blood in stool
2. Reduced yields
3. Reduced quality of products
4. Death of the animals
When soft water is mixed with soup it forms
1. scum
2. lather
3. scale
4. salt
Too much fertilizer when used to improve the quality of the soil-may lead to
1. soil pollution only
2. water pollution only
3. air pollution only
4. soil and water pollution
One of the following soil conservation methods can help to control sheet erosion. Which one?
1. Mulching
2. Planting cover crops
3. Terracing 1
4. Building gabions
Which one of the following parasites will attack livestock without living in it?
1. Tick
2. Tsetse fly
3. Flea
4. Mite
When preparing a compost manure farmers are advised to add manure to the compost MAINLY in order to
1. introduce bacteria to the compost to encourage decomposition :
2. supply additional nutrients to the compost manure.
3. speed up the process of decomposition,
4. provide nutrients to the bacteria that bring about decomposition: **
Which one of the following is a modern method of preserving food by removing z moisture?
1. Canning
2. Salting
3. Freezing
4. Drying
The illustration shown below is an arrangement that can generate electricity.

Therefore it is a
1. cell
2. battery
3. dynamo
4. generator
While carrying out an experiment on mixing liquids, standard seven pupils accidentally mixed the following liquids in equal amounts in one large container:
- water
- spirit
- kerosene
-fresh milk
- cooking oil.
If they left the mixture to settle overnight, how many layers would hay observe formed in the transparent container?
1. Three
2. Five
3. One
4. Two
Which one of the following methods of separation is the MOST convenient one to use in separating an insoluble solid from a liquid?
1. Decantation
2. Winnowing
3. Filtering
4. Sieving
Below is an illustration representing the relative amount of gases found in the atmosphere:
Which part marked by the letters W, XY and Z shows part of the air used during : germination?
1. W
2. X
3. Y
4. Z
The following are advantages of breast feeding it
1. boosts the baby's immunity
2. is always ready when required
3. allows mother to child bonding
4. is easier for the infant to digest
  Among these advantages which one is the MAIN reason why mothers are advised to use this method compared to others?
  1. (i)
  2. (ii)
  3. (iii)
  4. (iv)
Three of the following are sources of potential energy EXCEPT one. Which one?
1. Foods
2. Fuels
3. Car battery
4. Motor oil.
The diagram shown below represents an improved charcoal jiko.

The jiko is an important energy device because it saves energy MAINLY because
1. uses less charcoal
2. is V-shaped
3. has a metal casing outside
4. has a clay lining inside.
The illustration below shows a crowbar in real use.

Which one of the following simple practices should be done in order to lift the load using the LEAST effort?
1. Crush the stone.
2. Push the fulcrum closer to the load.
3. Pull the fulcrum closer to the effort.
4. Apply effort closer to the fulcrum
Force acting against movement is usually referred to as
1. friction
2. magnetic
3. inertia
4. gravitational
The soil that had the LEAST amount of water
1. Has the highest capillarity.
2. Makes the longest ribbons.
3. Have the largest air spaces.
4. Sticks when wet.

Marking Scheme

A
C
B
C
A
B
B
C
A
C
D
B
D
C
A
D
D
A
C
C
B
A
C
B
C
A
A
A
D
D
A
B
C
A
B
D
B
B
D
D
B
D
A
C
A
D
D
B
A
C

Published in KCPE 2022 Prediction Papers Set 1

Tagged under

Monday, 04 July 2022 06:50

Science Questions and Answers - Standard 7 Term 2 Opener 2022 Set 2

QUESTIONS

The undigested food material is temporarily stored in the
1. anus
2. rectum
3. colon
4. small intestine
Which one of the following pairs shows living components of an environment?
1. Plants and animals
2. Animals and soil
3. Air and water
4. Plants and water
When setting and carrying out an investigation on soil drainage. What should not be the same?
1. Amount of soil
2. Size of funnels
3. Size of collecting jars
4. Amount of cotton wool used
Cross pollination is the transfer of pollen grain from the
1. anthers to stigma of any flower.
2. anthers of one flower to the stigma of another flower
3. anther of one flower to the stigma of another flower on a different king of a plant
4. anthers of one flower to the stigma of another flower on a different plant of the same kind
The diagram below shows female reproductive system.

Which letter above shows where fusion of sex cells take place?
1. W
2. X
3. Y
4. Z
Which one of the following diseases cannot be prevented by maintaining proper hygiene?
1. Bilharzia
2. Cholera
3. Anaemia
4. Typhoid
Which one of the following leads to water pollution?
1. Burying banana peels in soil.
2. Washing clothes and vehicle in river
3. Releasing treated sewage into rivers
4. Using farm chemical sparingly
Which of the following does not take place during inhalation?
1. Diaphragm flattens
2. ribs move outwards
3. pressure in lungs decreases
4. volume of the chest cavity decreases
Std 6 pupils prepared the set up below.

The aspect of light investigated was
1. making of a rainbow
2. reflection of light by a mirror
3. refraction of light in water
4. transfer of heat from sun by radiation
Which material below is not required when making liquid thermometer?
1. water
2. ink
3. manila paper.
4. funnel
Which one of the following is untrue about duck billed platypus and ostrich? Both
1. lay fertilized eggs
2. are warm blooded
3. suckle their young ones
4. breath through lungs
Which stage of HIV/AIDS infection can the victim test positive without signs of the diseases?
1. Full blown AIDS
2. Asymptomatic stage
3. Symptomatic stage
4. Window stage
Sheet erosion is also called
1. landslide
2. splash
3. rill
4. spatter
The following are characteristics of a certain soil.
- Least air spaces
- Crack when dry
- Smooth texture
- Make the longest ribbons
  The soil above is likely to be
  1. loam
  2. clay
  3. sand
  4. silt
The charts below shows method of food preservation?

Which one of the following represents M, N and P respectively?

M N P

A.Canning Drying Salting

B.Salting Use low temperature Drying

C.Canning Smoking Drying

D.Drying Use of honey Low temperature
Which one of the following is not an importance of water in the diet?
1. Blood formation
2. Helps in food digestion
3. Helps in removal of faeces
4. Prevent dehydration
Std 7 pupils did the experiment below by dropping paper on burning fire as shown below.

What were the pupils investigating?
1. Radiation
2. Convection
3. Conduction
4. Air movement
Which blood component fight germs in the body?
1. White blood cells
2. Red blood cells
3. Platelets
4. Plasma
Which type of teeth helps in cutting food?
1. Canine
2. Incisors
3. Molars
4. Premolars
The following are characteristics of a cloud.
- Flats at the bottom
- Look like cotton balls
- Found high in the sky
  The clouds above are likely to be
  1. cumulus
  2. nimbus
  3. cirrus
  4. stratus
What is the main purpose of mulching?
1. Remove weeds
2. Control soil erosion
3. Conserve water
4. Remove excess water from soil
The following are effects of livestock diseases. Which one is not?
1. Death of animals
2. Increased appetite
3. Low yields
4. Transmission of diseases to people
In a farm water is used for
1. boat racing
2. washing coffee berries
3. sport fishing
4. irrigating crops
The experiment below was done by Std 5 pupils while investigating transfer of heat.

After sometime the pins dropped starting with W to the last pin Z. This was due to transfer of heat through a process called
1. radiation
2. convection
3. conduction
4. expansion
The following are signs of a certain disease
- Pain in the chest
- Loss of weight
- Sweating at night
- Blood in sputum and saliva
  The disease is likely to be
  1. bilharzia
  2. tuberculosis
  3. malaria
  4. cholera
Which statement is true about liquids?
1. Has definite mass and shape
2. Has definite size and shape
3. Has indefinite shape and size
4. Has definite volume and mass
The force that resist motion is called
1. pressure
2. weight
3. inertia
4. friction
Which one of the components of the environment is abundant on the earth surface?
1. Water
2. Air
3. Soil
4. Animals and plants
Which crop below is not a tuber?
1. Carrot
2. Arrowroot
3. Onion
4. Beetroot
The component of air that is used in photosynthesis is also used for
1. plant germination
2. putting out fire
3. metal rusting
4. light bulbs
Which of the following crops pest is correctly matched with the damage they cause on crops?
1. Cutworms - Eat grains in the field
2. Aphids - suck sap on leaves
3. Weevils - cut stems of young plant
4. Weaver birds - bore holes in stems
The set up below was used by pupils to investigate a certain component of soil.

The soil component investigated is
1. inorganic matter
2. organic matter
3. air
4. water
Which one of the following is not a social effect of drug abuse?
1. Truancy
2. Poor judgement
3. Accidents
4. Rape
Which one of the following is true about both miraa and alcohol? They
1. cause liver cirrhosis
2. are depressants
3. are legal drugs
4. are prohibited in Kenya
The diagram below shows interdependence between plants.

This shows plants interdependence on
1. habitat
2. shade
3. support
4. nutrients
Which experiment below can be used to demonstrate what happens to the passengers when the car brakes abruptly?
Which vaccine is given to an infant at the age of 9 months
1. Tuberculosis
2. Polio
3. Cholera
4. Measles
Which animal below has scales on its body?
1. Frog
2. Ostrich
3. Whale
4. Salamandar
The chart below shows classification of crops.

Which crops can correctly replace letters M, R and X respectively?

M R X

A.Tea Flax Sisal

B.Sunflower Sisal Beans

C.Coffee Simsim Sunflower

D.Cocoa Cotton Maize
The tips of the thread-like structures found in the maize cob are
1. styles
2. stigmas
3. anthers
4. filaments
A metallic bowl floats on water due to its
1. weight
2. material
3. shape
4. size
Insectivorous plants grow in soil that lacks
1. oxygen
2. water
3. nitrogen
4. living organisms
Draining stagnant water can help in controlling diseases called
1. Cholera and Typhoid
2. Malaria and Typhoid
3. Bilharzia and Malaria
4. Cholera and Malaria
Which group of foods below shows a balanced diet?
1. Kales, oranges, meat
2. Cassava, onion, milk
3. Chapati, milk, meat
4. Chips, chickens, soda
Std 4 pupils carried out the experiment shown below.

In order for the water to flow out smoothly from the tin, you should
1. raise the tin
2. reduce water
3. make another hole on the lid
4. make another hole next to the small hole
Which deficiency disease below is caused by lack of vitamins and minerals?
1. Rickets
2. Anaemia
3. Kwashiorkor
4. Marasmus
Which weed has black seeds with hooks?
1. Oxalis
2. Thorn apple
3. Black jack
4. Mexican marigold
The best method to control the spread of HIV/AIDS among the youths is
1. use condoms
2. being faithful to the partner
3. by use of medicines
4. abstinence
Which one of the following component of air keeps varying from time to time
1. water vapour
2. oxygen
3. carbon dioxide
4. nitrogen
Which blood vessel carries deoxygenated blood to the heart?
1. Aorta
2. Vena cava
3. Pulmonary vein
4. Pulmonary artery

MARKING SCHEME

B
A
C
D
A
C
B
D
A
D

C
B
A
B
A
C
B
A
B
A

C
B
D
C
B
D
D
A
C
B

B
D
B
C
A
C
D
B
D
B

C
C
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C
A
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D
A
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Science Questions and Answers - Standard 7 Term 2 Opener 2022 Set 2

MARKING SCHEME

	P	Q	S
A	Style scar	radicle	fruit scar
B	Radicle	plumule	endosperm
C	Style	endosperm	cotyledon
D	Fruit scar	plumule	radicle

	Deoxygenated blood	Oxygenated blood
A	Pulmonary vein	Aorta
B	Vena cava	Vena cava
C	Pulmonary vein	Pulmonary artery
D	Pulmonary artery	Aorta

	At birth	Fourteen week
A	Polio	Hepatitis B
B	Tuberculosis	Measles
C	Yellow fever	Tetanus
D	Whooping cough	Polio

	Magnetic	Non magnetic
A	Razor blades	Copper wire
B	Office pin	Steel wool
C	Hair strand	Aluminium foil
D	Wooden rod	Rubber bands

	Immiscible	Miscible
A	Petrol, cooking oil	Spirit, diesel
B	Milk, kerosene	Ink, water
C	Water, milk	Spirit, kerosene
D	Petrol, ink	Diesel, milk

	Vaccine	When administered
A	1st DPT	At birth
B	2nd Polio vaccine	10 weeks
C	3rd Hepatitis B	14 weeks
D	3rd DPT	14 weeks

	Types of teeth	Function
A	Canine	Cutting
B	Incisor	Biting
C	Pre-molar	Chewing
D	Molar	Grinding

	W	X	Y
A	Maize	Fern	Cypress
B	Lichen	Algae	Mushroom
C	Beans	Cactus	Puffballs
D	Acacia	Cedar	Toadstool

	Types of pest	Part of plant attacked
A	Aphids	grains of all kind
B	Cutworms	stems of young plants
C	Weaver birds	grains of cereals.
D	Stalk borers	inside of the stem

M	N	P
A.Canning	Drying	Salting
B.Salting	Use low temperature	Drying
C.Canning	Smoking	Drying
D.Drying	Use of honey	Low temperature

M	R	X
A.Tea	Flax	Sisal
B.Sunflower	Sisal	Beans
C.Coffee	Simsim	Sunflower
D.Cocoa	Cotton	Maize