INTEGRATED SCIENCE-BECE PASCO

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1. Which of the following types of teeth is used by mammals to tear food material? *

1 point

A. Canines

B. Incisors

C. Molars

D. Premolars

2. The eclipse formed when the moon comes between the sun and the earth is known as *

1 point

A. annular eclipse

B. lunar eclipse

C. solar eclipse

D. total eclipse

3. The element with the chemical symbol S is *

1 point

A. silicon

B. silver

C. sodium

D. sulphur

4. The term leaching in soils refers to *

1 point

A. accumulation of organic matter

B. decomposition of plant material.

C. fixation of nitrogen

D. removal of soil nutrients by water.

5. Which of the following statements about a plant cell is correct? It *

1 point

A. does not have a nucleus

B. contains large vacuoles

C. is surrounded by the cell membrane only

D. does not have a definite shape

6. An example of a derived quantity is *

1 point

A. length

B. mass

C. temperature

D. volume

7. Solid non-metals normally break into pieces when hammered because they are *

1 point

A. brittle

B. ductile

C. lustrous

D. malleable

8. Young rabbits are called *

1 point

A. bunnies

B. cubs

C. fingerlings

D. kids

9. Producers in an ecosystem are plants that *

1 point

A. attract insects

B. feed on other plants

C. feed on dead materials

D. manufacture their own food.

10. The form of energy produced from the nucleus of an atom is termed *

1 point

A. chemical energy

B. mechanical energy

C. nuclear energy

D. thermal energy

11. Which of the following elements is a semi-metal? *

1 point

A. Carbon

B. Nitrogen

C. Silicon

D. Sodium

12. A system of farming that leads to continuous destruction of virgin forest is *

1 point

A. mixed farming

B. mixed cropping

C. pastoral farming

D. shifting farming

13. The by-products of respiration are *

1 point

A. carbon dioxide and heat

B. carbon dioxide and water

C. oxygen and heat

D. oxygen and water.

14. Which of the following statements about a force are correct? It I is measured in newtons II is measured in newton-metre III can start a motion IV can change the direction of a moving body. *

1 point

A. I and II only

B. I and III only

C. I, III and IV only

D. I, II, III and IV

15. Which of the following substances is a solid-gas mixture? *

1 point

A. Lather

B. Bronze

C. Steel

D. Smoke

16. Weeds on a school farm could be controlled by *

1 point

A. handpicking

B. mowing

C. ploughing

D. tilling

17. An example of a non-living tissue used in osmosis experiment is *

1 point

A. cellophane

B. filter paper

C. potato

D. polythene

18. Kerosene is poured on the surface of a pond in order to *

1 point

A. make it unsafe for human consumption

B. make it safe for animal consumption

C. increase the surface tension

D. break the surface tension

19. Which of the following processes is used to separate insoluble solids from liquids? *

1 point

A. Crystallization

B. Evaporation

C. Filtration

D. Sublimation

20. The process of removing unproductive poultry birds from a flock is referred to as *

1 point

A. candling

B. culling

C. dehorning

D. drenching

21. Which of the following pairs of diseases can be spread easily when food is exposed to houseflies? *

1 point

A. Dysentery and malaria

B. Malaria and tuberculosis

C. Dysentery and cholera

D. Cholera and tuberculosis

22. The pressure in fluids *

1 point

A. acts differently in all directions

B. acts upwards at any point

C. decreases with depth

D. increases with depth

23. Which of the following processes involve a change in the state of matter from liquid to solid? *

1 point

A. Heating

B. Freezing

C. Cooling

D. Cooling

24. Which of the following food items contains the highest amount of dietary fibre? *

1 point

A. Beans

B. Bread

C. Cabbage

D. Egg

25. An example of a disease vector is *

1 point

A. earthworm

B. liver fluke

C. tapeworm

D. tick

26. Which of the following devices is made of semiconductor? *

1 point

A. Capacitor

B. Inductor

C. Resistor

D. Transistor

27. Which of the following statements about the properties of water are correct? It I. is colourless and tasteless II. is neutral to litmus paper III. turns red litmus paper blue IV. is a universal solvent *

1 point

A. I and II only

B. I and III only

C. I, II and IV only

D. I, III and IV only

28. The study of the soil profile of an area helps the farmer to *

1 point

A. control weed growth

B. determine the soil temperature

C. determine the types of crop to grow.

D. know the pesticides to use.

29. When a green leaf is placed in a test tube containing ethanol and heated over a water bath the leaf *

1 point

A. becomes soft

B. changes colour to brown

C. changes colour to blue-black

D. is decolourized.

30. Which of the following sources of energy is / are renewable? I. Solar II. Crude oil III. Wind *

1 point

A. I only

B. I and II only

C. I and III only

D. I, II and III

31. Which of the following substances is a compound? *

1 point

A. Hydrogen

B. Nitrogen

C. Oxygen

D. Water

32. A disease-causing organism that is most difficult to control in crop production is *

1 point

A. bacterium

B. fungus

C. nematode

D. virus

33. Which of the following organisms is/ are multicellular? I. Amoeba II. Paramecium III. Onion *

1 point

A. I only

B. III only

C. I and III only

D. II and III only

34. In electronic circuits, LEDs are used to indicate the absence or presence of *

1 point

A. emitter and collector

B. electric current

C. p-n junction

D. voltage source.

35. Steel is an alloy of iron and *

1 point

A. aluminium

B. carbon

C. silicon

D. gold

36. Soil aeration could be improved through *

1 point

A. mulching

B. irrigation

C. soil drainage

D. fertilizer application

37. Which of the following pairs of structures are part of the respiratory system of humans? *

1 point

A. Fallopian tube and alveoli

B. Pharynx and oesophagus

C. Trachea and alveoli

D. Trachea and duodenum

38. Which of the following effects is not a result of illegal connection of electricity? It can *

1 point

A. lead to fire outbreak

B. lead to frequent power cut-off

C. increase the flow of current in the supply chain.

D. cause damage to electrical appliance

39. Which of the following statements about the scientific method is / are correct? It provides I. logical procedure for arriving at knowledge. II. knowledge that can be verified III. knowledge that can never be changed *

1 point

A. I only

B. I and II only

C. I and III only

D. II and III only

40. An entrepreneur’s decision as to what to produce is a/ an *

1 point

A. co-ordinating function

B. organizing function

C. planning function

D. supervising function

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