Integrated Science BECE 1994

August 1994
45 minutes
1. Which of the following substances can exist in all the three states of matter at 0°C?
A. Petrol
B. Palm oil
C. Milk
D. Alcohol
E. Water

2. Pluto is the darkest planet because it
A. is larger than the sun
B. is the largest planet
C. is beyond the reach of the sun’s rays
D. is smaller than the sun
E. falls in the penumbra region of an eclipse

3. In reproduction, the embryo can be referred to as
A. an ovary
B. a fertile egg
C. a fertilized egg
D. a placenta
E. a mature ovum

4. Which of the following statements about second class levers is true?
A. The pivot is between the effort and the load
B. The load is between the effort and the pivot
C. There is no pivot
D. The load is on the pivot
E. The effort is between the pivot and the load

5. Which of the following is not a communicable disease?
A. smallpox
B. chicken pox
C. influenza
D. pneumonia
E. Tuberculosis

6. When bread is chewed for a long time, it tastes sweeter because it
A. is made from sugar and flour
B. is digested into simple sugar
C. mixes with saliva which is alkaline
D. is broken into smaller pieces
E. contains yeast which is sweet

7. Which of the following gases is not an air pollutant?
A. cigarette fumes
B. carbon dioxide
C. sulphur dioxide
D. exhaust fumes
E. carbon monoxide

8. Dissolved mineral salts from the soil enter the plant by the process of
A. phototropism
B. transpiration
C. diffusion
D. osmosis
E. ingestion

9. Which of the following organs is the center of the Central Nervous System?
A. Kidney
B. Liver
C. Heart
D. Brain
E. Lung

10. Soil fertility can be conserved by all the following methods except
A. mulching
B. afforestation
C. deforestation
D. crop rotation
E. green manuring

11. Which of the following insects is an agent of pollination?
A. Mosquito
B. Housefly
C. Bee
D. Ant
E. Cockroach

12. During the dry season most trees shed their leaves to
A. protect the tree
B. avoid being pulled down by strong winds
C. conserve water and nutrients
D. discourage animals from eating the leaves
E. reduce the loss of carbon dioxide

13. The chemical formula for sodium chloride
A. Na2Cl
B. NaCl
C. Sn2Cl
D. NaCl2
E. SnCl2

14. Which of the following is the cleanest source of drinking water?
A. Lake
B. Stagnant water
C. River
D. Deep well
E. Surface well

15. The edible part of the mango fruit is called
A. endocarp
B. drupe
C. fibre
D. mesocarp
E. epicarp

16. Which of the following is not a characteristic of all living organisms
A. Respiration
B. Reproduction
C. Photosynthesis
D. Feeding
E. Excretion

17. Which of the following conditions in a simple machine will make working difficult? When
A. The load distance is equal to the effort distance
B. The effort distance is twice the load distance
C. The effort distance is three times the load distance
D. Small effort moves through a longer distance
E. The load distance is greater than effort distance.

18. A dam for generating power is constructed across a river. What type of energy is possessed by the water behind the dam?
A. Kinetic energy
B. Potential energy
C. Electrical energy
D. Heat energy
E. Light energy

19. Which of the following is a function of prop roots? They
A. Store starch in the swollen branch roots
B. Take in air for respiration
C. Hold the plant more firmly in the soil
D. Develop into storage roots
E. Develop into fibrous roots

20. Which of the following living organisms is not a reptile?
A. Lizard
B. Tortoise
C. Frog
D. Snake
E. Crocodile

21. The following are steps involved in how nutrients in decaying organic matter finally get to man.
I. The mineral in them go into the soil
II. Man goes to eat the plant food
III. They dissolve in soil water
IV. They are used up by plants during photosynthesis

Which of the following arrangements represents the correct order in which the processes occur?
A. I, II, III and IV
B. I, III, IV and II
C. IV, II, III and I
D. II, III, I and IV
E. III, IV, I and II

22. Which of the following is the energy possessed by an object placed on a table?
A. Kinetic energy
B. Electrical energy
C. Potential energy
D. Sound energy
E. Heat energy

23. The change in the shape of the moon is caused by the
A. clouds covering the moon surface
B. earth revolving around the sun
C. moon revolving around the earth
D. sun revolving around the moon
E. earth rotating on its axis

24. The most sensitive region of the eye to light rays is the
A. retina
B. pupil
C. cornea
D. iris
E. lens

25. Digestion is a process by which food is
A. transported in soluble form within the body of animals
B. broken down into tiny pieces in the mouth
C. moved through the alimentary canal
D. broken down to produce energy, water and carbon dioxide
E. broken down into forms which can be easily absorbed

26. Which of the following processes is not a physical change
A. Dissolution
B. Melting
C. Boiling
D. Evaporation
E. Burning

27. Which of the following is used to measure the potential difference across a resistor in an electrical circuit?
A. A galvanometer
B. A rheostat
C. A meter bridge
D. A voltmeter
E. An ammeter

28. There are thick forests in some parts of the world because the climate there is
A. Warm and dry
B. Cool and dry
C. Hot and dry
D. Cool and wet
E. Hot and wet

29. Which of the following practices encourages soil erosion?
A. Planting cover crops
B. Mulching
C. Contour ridging
D. Crop rotation
E. Ploughing along the slope

30. A car battery produces electrical energy from
A. Chemical energy
B. Sound energy
C. Kinetic energy
D. Heat energy
E. Potential energy

31. Which of the following substances is not found in the excretory products of man?
A. Ammonium salt
B. Common salt
C. Glucose
D. Water
E. Carbon dioxide

32. Which of the following processes can be used to obtain local gin from palm wine?
A. Evaporation
B. Condensation
C. Distillation
D. Filtration
E. Sublimation

33. The linear sequence of living things feeding and being fed on is called
A. linear feeding
B. food chain
C. photosynthesis
D. nutrition
E. transpiration

34. Which of the following organisms causes malaria?
A. Tsetsefly
B. Fungi
C. Virus
D. Plasmodium
E. Bacteria

35. The male and female sex cells of a plant are respectively in the
A. Sperm and egg
B. Pollen grain and ovary
C. Sperm and ovary
D. Ovary and ovule
E. Embryo and seed

36. Which of the following preventive measures is not used in the control of tuberculosis?
A. Isolating the patient
B. Spitting carelessly in the environment
C. Keeping separate cutlery, plates, cups for the patient
D. Vaccinating young babies with BCG vaccine
E. Spitting into a container partly filled with disinfectant

37. During an eclipse of the sun, the region that has total darkness is known as
A. umbra
B. orbit
C. penumbra
D. shadow
E. satellite

38. Animals that live in grasslands include
A. lions and giraffes
B. monkeys and tigers
C. antelopes and hares
D. woodpeckers and baboons
E. elephants and leopards

39. Which of the following are products of respiration?
A. Glucose and oxygen
B. Waste food, energy and carbon dioxide
C. Energy, carbon dioxide and water
D. Energy, oxygen and water
E. Carbon dioxide and oxygen

40. Which of the following living things hide during the sunny days in order to conserve water in its body?
A. Rat
B. Lizard
C. Butterfly
D. Toad
E. Bat