Integrated Science BECE 1995

August 1995
SCIENCE
SECTION A
OBJECTIVE TEST
45 minutes

1. Which of the following activities does not cause soil erosion?
A. Clearing of vegetation
B. Bush burning
C. Heavy rainfall
D. Over grazing
E. Crop rotation

2. What is the difference between mass and weight? The
A. mass of a body is twice the weight
B. weight of a body is constant but its mass varies
C. mass of a body varies but its weight does not
D. weight of a body varies but its mass does not
E. mass of a body is half the weight

3. By what process is heat transferred from the bottom of a beaker containing water to the top?
A. convection
B. conduction
C. radiation
D. absorption
E. transmission

4. In what units are work and energy measured?
A. work in joules, energy in watts
B. work in joules, energy in joules
C. work in newtons, energy in joules
D. energy in watts, work in watts
E. energy in newtons, work in joules

5. Which of the following is the organic part of the soil?
A. Mineral salts
B. Water
C. Rock particles
D. Air
E. Humus

6. A mixture of sugar and water can be separated by
A. Filtration
B. Evaporation
C. Decantation
D. Distillation
E. Condensation

7. The air pressure at great heights can be measured with
A. A thermometer
B. An anemometer
C. A barometer
D. A hydrometer
E. A hygrometer

8. Which of the following animals reproduces without mating?
A. Toad
B. Lizard
C. Dog
D. Man
E. Amoeba

9. Which of the following environmental factors can cause the fastest rate of water loss from leaf surfaces?
A. High humidity
B. Wet wing
C. Still air
D. Low temperature
E. Dry air

10. A fruit adapted for dispersal by wind is likely to be
A. succulent
B. brightly coloured
C. hooked
D. sticky
E. hairy

11. All the following substances are mixtures except
A. ink
B. blood
C. air
D. palm wine
E. carbon dioxide

12. In a first class lever, the load is placed
A. on the effort
B. between the effort arm and the pivot
C. at one end of the load arm
D. between the pivot and the load arm
E. on the pivot

13. Excretion in animals involves the removal of
A. water from the body
B. urine and faeces from the body
C. blood from the body
D. waste materials from the body cells
E. undigested food from the body

14. Which of the following is an indirect source of light?
A. Torch light
B. The sun
C. Fire
D. The moon
E. Candle flame

15. Which of the following is the sense organ for sight?
A. Skin
B. nose
C. eye
D. ear
E. tongue

16. Liquids suitable for use in thermometers must not:
A. wet glass
B. have a low boiling point
C. have a high melting point
D. have a high density
E. expand

17. When living organisms die, the mineral salts in their bodies become available to the soil through the process of
A. evaporation
B. sedimentation
C. defecation
D. decay
E. osmosis

18. Ice floats on water because
A. water is denser than ice
B. ice is denser than water
C. ice has the same temperature as water
D. ice has a lower temperature than water
E. ice is different from water

19. The reason for chewing food before swallowing is to
A. soften the food
B. make digestion faster
C. cause saliva to flow out
D. exercise the jaws
E. make the teeth strong

20. Power is defined as the
A. ability to do work
B. amount of energy
C. rate of distance covered
D. rate of doing work
E. ease of moving a heavy object

21. The force which is able to hold light objects on the surface of liquids is called
A. surface tension
B. friction
C. capillarity
D. viscosity
E. cohesion

22. In the nucleus of an atom, there are
A. neutrons and shells
B. protons and electrons
C. neutrons and protons
D. electrons and shells
E. electrons and neutrons

23. The male sperms fertilize the female eggs to form the
A. embryo
B. ovary
C. ovum
D. placenta
E. uterus

24. Most plants will not do well in the desert because
A. there is no top soil
B. it is too sunny there
C. rainfall is very poor
D. the speed of wind is high
E. the gullies are too deep for plant cultivation

25. What is the work done when a girl lifts a pot of water weighing 40 N upward through a distance of 1 m?
A. 400.0 J
B. 40.0 J
C. 4.0 J
D. 1.0 J
E. 0.4 J

26. Which of the following is not characteristic of all living organisms? The ability to
A. break down food to obtain energy
B. produce food using the sun’s energy
C. make use of food nutrients to grow
D. respond to changes within the environment
E. give rise to young new individuals

27. The process used in getting salt from sea water is
A. boiling
B. condensation
C. decantation
D. sedimentation
E. evaporation

28. Which of the following bodies is a satellite of the earth?
A. Mars
B. Sun
C. Venus
D. Moon
E. Mercury

29. Which of the following are soil micro-organisms?
A. Termites
B. Viruses
C. Ticks
D. Bacteria
E. Crabs

30. The darkest part of a shadow formed when a large source of light is used is the
A. Partial eclipse
B. Lunar eclipse
C. night
D. penumbra
E. umbra

31. The part of air which supports burning is
A. nitrogen
B. inert gas
C. water vapour
D. oxygen
E. carbon dioxide

32. What structure links the mouth with the stomach? The
A. duodenum
B. oesophagus
C. Ileum
D. trachea
E. colon

33. Which of the following instruments is used in measuring current in an electric circuit?
A. Voltmeter
B. Ammeter
C. Barometer
D. Thermometer
E. Anemometer

34. There are thick forests in part of the world where the climate is
A. Hot and wet
B. cool and wet
C. hot and dry
D. cool and dry
E. warm and dry

35. The outer ear is also referred to as
A. cochlea
B. tympanum
C. pinna
D. incus
E. malleus

36. Gin can be obtained from palm wine by
A. condensation
B. freezing
C. sedimentation
D. distillation
E. filtration

37. Which of the following is likely to happen when the relative humidity is high?
A. It is likely to rain
B. It is likely to be dry
C. It is likely to be sunny
D. The day will be hot
E. It will be windy

38. Which of the following features is common to both the fish and the lizard? The possession of
A. a sticky tongue
B. a lateral line system
C. dorsal fins
D. clawed digits
E. scales on the body

39. Which of the following statements about the solar system is true? The
A. sun moves round the earth
B. planets move round the sun
C. planets move round the moon
D. sun moves in its orbit
E. sun moves round the moon

40. What type of fruit is a mango?
A. Drupe
B. Pepo
C. Berry
D. Caryopsis
E. Pome