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?
Pulmonary vein and aorta.
Vena cava and aorta.
Pulmonary artery and aorta.
Aorta and vena cava.
During birth, the following procedures take place
The baby comes out through the vagina.
The uterine wall contractions cause labour pains.
The amnion is broken and amniotic fluid is released
The umbilical cord is tied and then cut Which of the following are in their CORRECT order?
(ii)(iii) i)(iv)
(ii)(iii)(iv) (i)
(iii)(ii)(i) (iv)
(iii)(ii)(iv)(i)
A ship will float on water because of its
size
shape
material
weight
When breathing in
the ribs move upwards and inwards.
the volume of the chest decreases.
pressure in the lungs decreases.
he diaphragm gets dome-shaped
Which one of the following shows the CORRECT urine passage from the kidneys during excretion?
Ureter → bladder → urethra
Urethra →bladder →ureter
Bladder → ureter → urethra
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?
It measures the direction of the wind.
Its arrowhead points to the direction where the wind is going to
The arrowhead should be smaller than the tail.
It should be placed far away from tall buildings and trees.
Which one of the following vaccines is administered at birth?
DPT
BCG
Antimeasles
Antipolio
One of the following animals does NOT have mammary glands. Which one?
Whale
Dolphin
Shark
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
the anthers to the stigma.
the anthers of one flower to the stigma of another flower in the same plant. –
the anthers of one flower to the stigma of another flower on a different plant of the same type.
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? :
Combine with oxygen.
Fight disease causing germs.
Carry digested food materials.
To clot blood when injured.
Which one of the following reproduction Processes takes place immediately after the sperm cell has united with the ovum?
Fusion
Fertilization
Ovulation
Implantation
Children born to mothers who smoke a lot during pregnancy are LEAST likely to
be underweight
have weak immunity:
be strong and healthy.
have poor mental growth."
Dairy milk and mutton are MOST likely to be obtained from –
goats only
cows only
sheep only
all of the above
Which one of the following shows a list of drugs which are NOT illegal in Kenya?
Bhang, mina, cocaine
Tobacco, heroin, alcohol
Cocaine, tobacco, bhang •
Miraa, tobacco, alcohol
The MOST effective way of controlling HIV and AIDS among married couples is by
abstinence
wing condoms
having one partner
being faithful
Which one of the following shows a list of major non-living components of the environment ONLY?
Water, air and soil
Plants and animals
Sound, light and heat
Food, buildings and soil
Which one of the following statements does NOT show interdependence among plants and animals?
Animals getting shade.
Animals getting shelter on trees.
Animals getting carbon dioxide from plants,
Plants getting pollination services from
In a feeding relationship yellow cabbage can it be grouped under
decomposers
primary consumers
producers
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
different shapes of collecting jars.
different sizes of tunnels.
different types of soils. .
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?
J, K
I,L
L, M
M, K
Thus bulb shown can reach heat to the hands below it by ___process.
conduction
convection
radiation
convection and radiation
Below are characteristics of matter:
Definite shape
Definite size
Define mass : Which two of the above will BEST describe a soda?
(i) and (ii)
ii) and (iii)
(iii) and (i)
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?
Q
S
P
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?
Absorption
Breathing
Transpiration
Photosynthesis
Which one of the following CORRECT shows a list of food crops only one
Legumes, fruits, tuber crops and cereals.
Vegetables, legumes, fibre crops and cereals.
Cereals, legumes, oil crops and vegetables
Legumes, beverages, vegetables and fruits
The second and seventh planets in the solar system are
Earth and Uranus
Venus and Saturn
Earth and Neptune
Venus and Uranus
From the illustration of the drawings shown below, it is possible to conclude that
liquids occupies space.
pressure in liquids is equal at the same depth.
pressure in liquids increases with depth.
liquids take the shape of the container
Plants adapted to little or no rain areas do NOT
brave large Nat leaves
roll or fold their leaves
have needle-like leaves
lose or shed their leaves
One of the following is NOT a sign unhealthy crop: Which one?
Stunted growth
Nice colouration on leaves and stems
Curled leaves
Willing
The type of beak shown below is well suited for
sucking nectar
filter feeding
eating grains
eating flesh
Which one of the following is NOT an effect of livestock diseases?
Blood in stool
Reduced yields
Reduced quality of products
Death of the animals
When soft water is mixed with soup it forms
scum
lather
scale
salt
Too much fertilizer when used to improve the quality of the soil-may lead to
soil pollution only
water pollution only
air pollution only
soil and water pollution
One of the following soil conservation methods can help to control sheet erosion. Which one?
Mulching
Planting cover crops
Terracing 1
Building gabions
Which one of the following parasites will attack livestock without living in it?
Tick
Tsetse fly
Flea
Mite
When preparing a compost manure farmers are advised to add manure to the compost MAINLY in order to
introduce bacteria to the compost to encourage decomposition :
supply additional nutrients to the compost manure.
speed up the process of decomposition,
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?
Canning
Salting
Freezing
Drying
The illustration shown below is an arrangement that can generate electricity. Therefore it is a
cell
battery
dynamo
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?
Three
Five
One
Two
Which one of the following methods of separation is the MOST convenient one to use in separating an insoluble solid from a liquid?
Decantation
Winnowing
Filtering
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?
W
X
Y
Z
The following are advantages of breast feeding it
boosts the baby's immunity
is always ready when required
allows mother to child bonding
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?
(i)
(ii)
(iii)
(iv)
Three of the following are sources of potential energy EXCEPT one. Which one?
Foods
Fuels
Car battery
Motor oil.
The diagram shown below represents an improved charcoal jiko. The jiko is an important energy device because it saves energy MAINLY because
uses less charcoal
is V-shaped
has a metal casing outside
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?
Crush the stone.
Push the fulcrum closer to the load.
Pull the fulcrum closer to the effort.
Apply effort closer to the fulcrum
Force acting against movement is usually referred to as
friction
magnetic
inertia
gravitational
The soil that had the LEAST amount of water
Has the highest capillarity.
Makes the longest ribbons.
Have the largest air spaces.
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
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Last modified on Thursday, 01 September 2022 06:47