Integrated Science BECE 2002

July 2002
SCIENCE
SECTION A
OBJECTIVE TEST
45 minutes

1. Which of the following substances is made up of only one kind of atom?
A. Iron
B. Salt
C. Steel
D. Water

2. Ice is able to float on water because the ice is
A. colder than water
B. denser than water
C. has a greater mass for the same volume of water
D. has a greater volume for the same mass of water

3. Which of the following statements about the state of matter is correct?
A. Molecules in a solid are disorderly arranged
B. Solids are highly compressible
C. Liquids have definite form and volume
D. Molecules in a gas move faster than those in a liquid.

4. The above diagram illustrates the structure of an atom. The components labeled X and Y are respectively
A. neutrons and shells
B. ions and neutrons
C. neutrons and nucleus
D. nucleus and neutrons

5. The force which opposes the motion of one object on another object is known as
A. friction
B. gravity
C. tension
D. weight

6. When the brakes of a bicycle in motion are applied for a long time the wheels become hot. This is because of a change of energy from
A. kinetic energy to potential energy
B. potential energy to kinetic energy
C. potential energy to heat energy
D. kinetic energy to heat energy

7. A man applied a force of 50 N to push a wheelbarrow through a distance of 6 m. Calculate the work done.
A. 300 J
B. 56 J
C. 44 J
D. 30 J

8. In which of the following situations is work said to be done?
A. Walking with a load on the head in an upright position.
B. Getting up from a chair
C. Pushing against a wall which does not move.
D. Sitting still behind a desk.

9. The energy stored in food is
A. an electrostatic energy
B. a chemical energy
C. a solar energy
D. a thermal energy

10. A machine which has an energy loss of 10% will have an efficiency of
A. 100%
B. 90%
C. 55%
D. 10%

The figure below shows a simple electric circuit. Use it to answer questions 11 to 13

11. The switch is represented by
A. IV
B. III
C. II
D. I

12. The component labeled V is a/an
A. ammeter
B. battery
C. lamp
D. voltmeter

13. The purpose of the component labeled IV is to
A. supply energy to the circuit
B. measure the voltage of the battery
C. prevent too much current from flowing
D. close the circuit

14. Which of the following diseases is spread by a mosquito?
A. Blindness
B. Cholera
C. Dysentery
D. Elephantiasis

15. The intermediate host of the worm that causes Bilharzia is
A. man
B. mosquito
C. tsetse fly
D. water snail

The figure below is a diagram of a fish. Use it answer questions 16 and 17

16. The function of the part labeled IV is to enable the fish to
A. sink in water
B. absorb oxygen from the water
C. protect itself from attack
D. detect smell in water

17. The part labeled V is used for
A. balancing
B. steering
C. surfacing
D. paddling

18. Which of the following arrangements is a probable food chain?
A. Grass → Grasshopper → Toad → Snake → Crow
B. Grasshopper → Grass → Goat → Lion → Man
C. Crow → Snake → Toad → Grasshopper → Grass
D. Grass → Goat → Lion → Man → Snake

19. One disease which can be transmitted through eating half cooked meat is
A. guinea worm
B. hook worm
C. thread worm
D. tape worm

20. Which of the following characteristics are common to all living things?
I. Response to stimuli
II. Respiration
III. Movement from place to place
IV. Growth

A. I and II only
B. I and III only
C. I, II and III only
D. I, II and IV only

21. The part of sugarcane that is usually used for planting is the
A. corm
B. leaf
C. stem
D. sucker

22. Excess carbohydrate in the human body is stored as
A. amino acid
B. fatty acid
C. glycogen
D. glucose

23. Carbon dioxide in the blood is removed from the body through the
A. kidneys
B. lungs
C. mouth
D. skin

24. The end-product of protein digestion is
A. amino acid
B. glycerol
C. glycogen
D. peptide

25. The liquid component of the blood is known as
A. cytoplasm
B. haemoglobin
C. plasma
D. platelets

26. Digested food substances are absorbed into the blood stream in the
A. kidneys
B. liver
C. stomach
D. iluem

27. The part of the human ear which collect and direct sound waves is the
A. ear drum
B. ear lobe
C. ear canal
D. semi-circular canal

28. The process by which waste substances are removed from the body is called
A. egestion
B. excretion
C. perspiration
D. respiration

29. The embryo of a mammal develops from
A. eggs fertilized inside the body
B. eggs fertilized outside the body
C. self fertilized eggs
D. only female sex cells

30. Which of the following gases is given out during photosynthesis?
A. Carbon dioxide
B. Carbon monoxide
C. Nitrogen
D. Oxygen

31. The component of the soil which is made up of the finest particles is
A. clay
B. humus
C. loam
D. sand

32. The soil type which is able to retain the highest amount of water is
A. clay
B. loam
C. gravel
D. sand

33. The formation of humus is aided by
A. earthworms
B. insects
C. rats
D. wind

34. The major cause of pollution at a stone quarry is
A. dust
B. human waste
C. acid disposal
D. smoke

35. Ringworm is a skin disease, which is caused by
A. bacteria
B. fungi
C. insects
D. worms

36. Which of the following habits will help in the control of diseases contracted through air?
I. Not throwing human waste into rivers
II. Washing of hands after visiting the toilet
III. Not spitting about in public places
IV. Keeping foods always covered

A. I and II only
B. II and III only
C. III only
D. I, III and IV only

37. Soup which is not well-heated gets spoilt when kept for sometime because the
A. salt in the soup is too small
B. water in the soup do not all evaporate
C. heat in the soup is not enough to kill all bacteria
D. water condenses back into the soup.

38. The measure of the amount of water vapour in the air is known as
A. cloud
B. dew
C. humidity
D. temperature

39. Which of the following heavenly bodies is a star?
A. Earth
B. Moon
C. Sun
D. Milky Way

40. The planet in our solar system which has the largest orbit is
A. Jupiter
B. Mars
C. Pluto
D. Venus

April 2002
SCIENCE
SECTION A
OBJECTIVE TEST
45 minutes

1. The gas usually used in fire extinguishers is
A. carbon dioxide
B. carbon monoxide
C. hydrogen
D. oxygen

2. The physical change(s) that take(s) place when a piece of ice is heated continuously for a long time can be represented by
A. solid → vapour
B. vapour → solid → liquid
C. solid → liquid → vapour
D. liquid → vapour

3. The chemical formula H2 represents
A. two atoms of hydrogen
B. two neutrons of hydrogen
C. two ions of hydrogen
D. two molecules of hydrogen

4. The dissolution of sugar in water is a physical change because the sugar
A. cannot be seen in water
B. cannot be separated from the water
C. can be separated from the water
D. can be tasted in the water

5. Which of the following statements is true at the boiling point of water?
A. The mass of the water remains the same
B. The temperature increases
C. The temperature remains constant
D. the volume of the water increases

6. When matter changes state from gas to liquid there is
A. a decrease in mass
B. a decrease in volume
C. an increase in pressure
D. an increase in temperature

7. The energy possessed by a compressed spring is a
A. chemical energy
B. kinetic energy
C. magnetic energy
D. potential energy

8. A ball is dropped from a height to the ground. The energy possessed by the ball just before it strikes the ground is called
A. heat energy
B. kinetic energy
C. potential energy
D. sound energy

9. Which of the following statements about a force are true?
I. It causes moving objects to stop
II. It causes stationary objects to move
III. It can change the direction of motion
IV. It can change the shape of an object

A. I and II only
B. III and IV only
C. I, II and III only
D. I, II, III and IV

10. A body of mass 50 kg falls through a height of 5m. If the acceleration due to gravity is 10 ms-2, calculate the loss in potential energy.
A. 50 J
B. 250 J
C. 500 J
D. 2500 J

11. Which of the following substances can be used as an electrical insulator?
A. Copper
B. Graphite
C. Plastic
D. Zinc

12. Gaps are left between railway lines to
A. prevent contraction
B. prevent rusting
C. allow for expansion
D. enable a train to stop

13. A beak and claws are protective structures of a
A. crab
B. hawk
C. lion
D. snake

14. An example of a parasite which lives in the intestines of an animal is
A. guinea worn
B. jigger
C. plasmodium
D. tapeworm

15. The best way to prevent guinea worm disease is by
A. boiling drinking water
B. putting camphor in drinking water
C. putting drinking water in a refrigerator
D. sieving drinking water

16. Malaria parasites enter the human body through
A. breathing contaminated air
B. drinking contaminated water
C. mosquito bites
D. tsetse fly bites

17. Human beings are omnivorous because they eat
A. both cooked and raw food
B. only flesh
C. only fruits
D. both plants and animals

18. The characteristics that distinguish living things from non-living things is that, living things
A. are able to move, non-living things are not
B. are of different sizes, non-living things have same size
C. can manufacture their own food, non-living things cannot
D. have a definite form, non-living things have irregular forms

19. Animals depend on plants for food because
A. animals do not need to drink when they eat plant food
B. only plants can make their food from simple substances
C. only plant food can satisfy animals
D. plants are available everywhere.

20. Which of the following animals has a body temperature which changes with the temperature of the surroundings?
A. Butterfly
B. Crow
C. Rabbit
D. Toad

21. The farming practice which would improve soil fertility is
A. clean weeding
B. crop rotation
C. continuous cropping
D. mono cropping

22. The best soil for plant growth consists of correct proportions of
A. clay, gravel and sand
B. clay and humus
C. clay, humus and sand
D. clay and sand

23. The by-product of photosynthesis is
A. carbon dioxide
B. starch
C. oxygen
D. water

24. Blood circulates to all parts of the human body with the help of the
A. heart
B. kidney
C. lungs
D. liver

25. The end-product of the digestion of carbohydrates is
A. amino acids
B. fatty acids
C. glucose
D. glycogen

26. The central nervous system is made up of the
A. brain and nerves
B. brain and spinal cord
C. veins and nerves
D. skull and spine

27. Which of the following organs are used for excretion?
I. Lung
II. Skin
III. Kidney
IV. Heart

A. I and IV only
B. II and III only
C. III and IV only
D. I, II and III only

28. The plant structures used for gaseous exchange are the
A. leaves
B. tendrils
C. thorns
D. roots

29. Digestion of starch in humans starts from the
A. gullet
B. ileum
C. mouth
D. stomach

30. The male sex cell is the
A. penis
B. scrotum
C. sperm
D. testis

31. Which of the following seeds is dispersed by explosive mechanism?
A. Coconut
B. Cotton
C. Okro
D. Orange

32. The ear is the organ for detecting
A. colour
B. heat
C. scent
D. sound

33. Which of the following substance is a digestive juice?
A. Blood
B. Bile
C. Sweat
D. Tear

34. An example of a disease transmitted through air is
A. bilharzias
B. cholera
C. measles
D. typhoid

35. Which of the following diseases can be caused by a housefly?
A. Dysentery
B. Elephantiasis
C. Scabies
D. Sleeping sickness

36. The part of the body of an animal that is usually affected by tuberculosis is the
A. heart
B. lung
C. liver
D. intestine

37. The irregular emptying of the bowels is the cause of
A. constipation
B. diarrhoea
C. headache
D. stomach ache

38. The farther away a planet is from the sun, the
A. colder the planet
B. hotter the planet
C. shorter the time it takes to go round the sun
D. shorter the length between day and night

39. The instrument used to measure relative humidity is the
A. anemometer
B. barometer
C. hygrometer
D. manometer

40. How many days does the moon take to go round the earth?
A. 31
B. 30
C. 29
D. 27