BECE 1990 Integrated Science Past Questions and Answers

Paper 1: Objectives

1. Which of the following is a liquid?
   1. A. Iron
   2. B. Mercury
   3. C. Brass
   4. D. Gold
   5. E. Aluminium
   Answer: B
2. The space occupied by matter is its
   1. A. area
   2. B. length
   3. C. radius
   4. D. width
   5. E. volume
   Answer: E
3. Which of the following processes could be used to obtain water from a salt solution?
   1. A. Filtration
   2. B. Decantation
   3. C. Evaporation
   4. D. Distillation
   5. E. Sedimentation
   Answer: D
4. The portion of air which is used in burning is
   1. A. nitrogen
   2. B. water vapour
   3. C. oxygen
   4. D. carbon dioxide
   5. E. inert gas
   Answer: C
5. Brine is a saturated solution of
   1. A. sodium chloride and carbon dioxide
   2. B. calcium carbonate and water
   3. C. sodium chloride and water
   4. D. calcium carbonate and kerosene
   5. E. magnesium and water
   Answer: C
6. The chemical symbol for iron is
   1. A. I
   2. B. K
   3. C. Fe
   4. D. Au
   5. E. Cl
   Answer: C
7. A torchlight derives its energy from
   1. A. petrol
   2. B. kerosene
   3. C. a magnet
   4. D. gas oil
   5. E. a dry cell
   Answer: E
8. A substance which cannot be broken down into simpler substances is called
   1. A. a molecule
   2. B. a compound
   3. C. an element
   4. D. a mixture
   5. E. an atom
   Answer: C
9. What type of energy is lost when sweat evaporates from the body?
   1. A. light energy
   2. B. mechanical energy
   3. C. chemical energy
   4. D. Heat energy
   5. E. Electrical energy
   Answer: D
10. The process by which steam is changed into liquid is called
    1. A. evaporation
    2. B. condensation
    3. C. filtration
    4. D. melting
    5. E. sublimation
    Answer: B

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11. Which of the following is not true about frictional force? It
    1. A. increases motion
    2. B. opposes motion
    3. C. damages machines
    4. D. produces heat
    5. E. decreases efficiency of machines
12. The instrument used in measuring the speed of wind is called:
    1. A. Thermometer
    2. B. Wind Vane
    3. C. Photometer
    4. D. Anemometer
    5. E. Hygrometer
13. The force which comes into operation when a ball rolls on the ground is:
    1. A. gravitational force
    2. B. frictional force
    3. C. magnetic force
    4. D. electrostatic force
    5. E. Force due to tension
14. Which of the following is true about a first class lever?
    1. A. The load is between the effort and the pivot
    2. B. The pivot is between the effort and the load
    3. C. The effort is between the pivot and the load
    4. D. The load is on the pivot
    5. E. There is no pivot
15. In which of the following situations is work not done? When a
    1. A. truck moves
    2. B. wheelbarrow is pushed
    3. C. fruit falls from a tree
    4. D. football is kicked
    5. E. book lies on a table
16. Which of these structures regulate the amount of light that enters the eye?
    1. A. Retina
    2. B. Cornea
    3. C. Pupil
    4. D. Choroid
    5. E. Lens
17. All of the following are herbivores except
    1. A. sheep
    2. B. dog
    3. C. goat
    4. D. grasscutter
    5. E. rabbit
18. The brain and the spinal cord are part of the
    1. A. digestive system
    2. B. circulatory system
    3. C. respiratory system
    4. D. nervous system
    5. E. excretory system
19. Which of the following is used by green plants for respiration?
    1. A. Carbon dioxide
    2. B. Oxygen
    3. C. Light
    4. D. Water
    5. E. Chlorophyll
20. A fish dies shortly after being removed from water. This is because it
    1. A. cannot swim
    2. B. is streamlined
    3. C. is hot on land
    4. D. has scales
    5. E. cannot respire
21. Which of the following habitats are you likely to find a tadpole?
    1. A. Bush
    2. B. Sea shore
    3. C. Pond
    4. D. Deep well
    5. E. Vegetable garden
22. Which of these is not a characteristic of all living things?
    1. A. Transpiration
    2. B. Growth
    3. C. Reproduction
    4. D. Feeding
    5. E. Respiration
23. Plants with thorns are not usually eaten by animals. The thorns therefore
    1. A. assist the plants to grow
    2. B. make the plant strong
    3. C. render the plant poisonous
    4. D. protect the plant
    5. E. make the plant unattractive
24. Which of the following soils is likely to be found in a waterlogged area?
    1. A. Sand
    2. B. Clay
    3. C. Gravel
    4. D. Black soil
    5. E. Loam
25. Which of the following soil organisms improve soil fertility?
    1. A. Ant-lion
    2. B. Red ant
    3. C. Millipede
    4. D. Snail
    5. E. Earthworm
26. Which of the following is cultivated on plantation basis?
    1. A. Okro
    2. B. Tomato
    3. C. Rubber
    4. D. Cassava
    5. E. Maize
27. The shape of a child's nose may resemble that of the mother due to
    1. A. Heredity
    2. B. Similarity
    3. C. Reflection
    4. D. Familiarity
    5. E. Attraction
28. All the following plants reproduce sexually except
    1. A. Coconut
    2. B. Sweet potato
    3. C. Pawpaw
    4. D. Apple
    5. E. Pear
29. Which of the following is not a mammal?
    1. A. Whale
    2. B. Bat
    3. C. Cat
    4. D. Hen
    5. E. Mouse
30. Plants lose water through a process called
    1. A. Photosynthesis
    2. B. Fertilization
    3. C. Transpiration
    4. D. Respiration
    5. E. Evaporation
31. Fertilized ovules develop into
    1. A. Fruits
    2. B. Cotyledon
    3. C. Plumule
    4. D. Testa
    5. E. Seeds
32. In mammals, sperms are produced in the
    1. A. Testis
    2. B. Ureter
    3. C. Penis
    4. D. Urethra
    5. E. Ovary
33. Starch is digested and absorbed into the blood as
    1. A. Soluble starch
    2. B. Water
    3. C. Glucose
    4. D. Fat
    5. E. Sucrose
34. Which of the following organs are connected by the ureter?
    1. A. Liver and kidney
    2. B. Kidney and bladder
    3. C. Bladder and heart
    4. D. Intestines and anus
    5. E. Lungs and bladder
35. A patient who coughs and spits out blood may be suffering from
    1. A. Asthma
    2. B. Pneumonia
    3. C. Measles
    4. D. Tuberculosis
    5. E. Influenza
36. All of the following promote Primary Health except
    1. A. Keeping the surroundings clean
    2. B. Effective disposal of waste
    3. C. Personal hygiene
    4. D. Balanced diet
    5. E. Bleaching the skin
37. The personnel who see to it that individuals who do not maintain hygienic surroundings are taken to court is the
    1. A. Police
    2. B. Lawyer
    3. C. Sanitary inspector
    4. D. Court clerk
    5. E. Prison officer
38. Which of the following statements is not true about the wet season?
    1. A. Bush fires are common
    2. B. Tree and weeds grow fast
    3. C. Small animals increase in number
    4. D. The weather is generally cool
    5. E. Food is in abundance
39. A mirror is used to direct the sun's rays onto the classroom wall by
    1. A. Radiation
    2. B. Reflection
    3. C. Conduction
    4. D. Revolution
    5. E. Convection
40. The sun and the planets form the
    1. A. Universe
    2. B. Atmosphere
    3. C. Milky way
    4. D. Constellation
    5. E. Solar system

Paper 2: Theory

1. (a) Define the following terms and give one example of each:
   
   (i) Compound
   
   (ii) Mixture
   
   (iii) Element
   
   (iv) Solute
   
   (b) What energy changes take place in the following processes?
   
   (i) A mango drops from a tree.
   
   (ii) A carpenter hits a nail with a hammer.
   
   (iii) A torch is switched on.
   
   (c) (i) Draw a well-labeled diagram of a flower
   
   (ii) Of what importance is the flower to the plant?
   
   (d) Name the sense organs and state one function of each.
2. (a) (i) What is soil erosion? Give two types of soil erosion
   
   (ii) Give three activities of man that can cause soil erosion.
   
   (iii) List three ways by which soil can be conserved.
   
   (b) (i) What is a lever?
   
   (ii) Classify the following under first class, second class, and third class levers: Sugar tong, Bottle opener, Paper cutter, A pair of scissors, Fishing rod, Claw hammer
   
   (c) In each of the following activities, state whether the changes that occurred are:
   
   (i) physical or chemical
   
   (ii) reversible or irreversible
   
   I. Some boiled cassava and plantain were pounded together into fufu.
   
   II. A piece of ice block is put in a cup. After a while, it is found out that the block had changed into a liquid
   
   III. A clean piece of nail was put into a beaker of water. After five days it was observed that the color of the nail had changed.
3. (a) For each of the following diseases, name the causative organism and one method of prevention.
   
   (i) Cholera
   
   (ii) Bilharzia
   
   (iii) Malaria
   
   (iv) Tuberculosis
   
   (b) Show how you would separate each of the following mixtures:
   
   (i) Common salt and sand
   
   (ii) Muddy water
   
   (c) Explain why the planets and their moons move around the sun but they do not clash.
   
   (d) Give two uses of the sun's energy in everyday life.
4. (a) (i) What is pollution?
   
   (ii) Name two types of pollution. For each type, give one pollutant and its source.
   
   (b) (i) Explain the term vegetative reproduction.
   
   (ii) Give any two examples of plants that reproduce vegetatively.
   
   (c) (i) List the parts of an atom and show the electrical charges of each of the parts.
   
   (ii) Explain the term work.
   
   (iii) Distinguish between heat and temperature and give their units.

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