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

Questions

1. 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.
2. 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.
3. 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
4. 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
5. 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.
6. 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.
7. 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.
8. 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.
9. 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.
10. 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.
11. 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.
12. 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.
13. 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

14. 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.
15. The quantity of matter in an object is called
    1. Weight
    2. friction
    3. mass
    4. magnetic
16. 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.
17. 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.
18. The diagram below represents an excretory organ.
    
    Name the parts labelled M
    
    1. sweat glands 
    2. sweat pores
    3. sweat duct
    4. dermis,
19. 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.
20. 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.
21. 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.
22. 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
23. 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,
24. 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.
25. 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,
26. 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.
27. 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.
28. 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.
29. 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,     
30. 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.
31. Three of the following are uses of heat at home expect
    1. Ironing clothes
    2. Scaring away pests
    3. Cooking
    4. Warming ourselves
32. 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.
33. 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. :
34. 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
35. 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

36. 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.
37. 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
38. The following plants depends on animals for food except
    1. bladderwort
    2. sundow 
    3. pitcher plant 
    4. waterlily.
39. 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.|
40. 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
41. 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.
42. 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.
43. 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.
44. 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,
45. 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.
46. 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
47. 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.
48. Which one of the followng is not a sign of food poisoning?
    1. Headache 
    2. Dehydration
    3. Fever
    4. Diarrhoea
49. 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
50. 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

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