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

Questions

1. 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
2. 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
3. Which one of the following is both a major and living component of the environment?
   1. Rocks
   2. Air
   3. Animals
   4. Soil
4. 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
5. 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
6. 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
7. 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
8. Which one of the following parts of an insectivorous plant helps to trap insects?
   1. Flower
   2. Leaf 
   3. Stem
   4. Root
9. 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
10. 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
11. 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
12. 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
13. 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
14. 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
15. 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.

16. 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 
17. 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
18. 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
19. 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)
20. 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
21. 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
22. 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
23. 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
24. 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
25. 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
26. 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
27. 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
28. 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
29. Plants depend on animals for all the following except;
    
    1. pollination
    2.  nutrients
    3. shelter
    4. carbon dioxide
30. 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
31. 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
32. Which one of the following conditions is not necessary for germination of seeds?
    1. Soil
    2. Warmth
    3. Air
    4. Water
33. 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

34. Which one of the following conditions is not necessary for germination of seeds?
    1. Soil
    2. Warmth 
    3. Air
    4. Water
35. 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
36. 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
37. 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
38. 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
39. 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
40. Draining of stagnant water would help prevent the spread of;
    1. tuberculosis
    2. malaria
    3. typhoid
    4. tetanus
41. 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
42. 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
43. 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
44. 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
45. All the following are social effects of drug abuse except;
    1. truancy
    2. marital conflicts 
    3. poor judgement 
    4. rape
46. 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)
47. The following methods preserve food by dehydrating it except;
    1. canning
    2. salting
    3. drying
    4. smoking
48. 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
49. Which one of the following is likely to attack young bean plants after germination?
    1. Mole
    2. Aphid
    3. Cutworm
    4. Stalk borer .
50. Which one of the following livestock parasite affects the small intestines only?
    1. Liverfluke
    2. Tapeworm
    3. Lungworm
    4. Hookworm

Marking Scheme

1. D
2. A
3. C
4. B
5. D
6. D
7. C
8. B
9. C
10. C
11. B
12. A
13. A
14. B
15. B
16. A
17. B
18. D
19. A
20. B
21. A
22. C
23. B
24. D
25. D
26. A
27. B
28. B
29. C
30. C
31. C
32. A
33. C
34. C
35. D
36. B
37. C
38. B
39. A
40. B
41. D
42. A
43. C
44. B
45. C
46. D
47. A
48. B
49. A
50. D