BECE 2014 Integrated Science Past Questions and Answers

Paper 1: Objectives

1. Which of the following type of teeth is used by mammals to tear food material?
   1. A. Canines
   2. B. Incisors
   3. C. Molars
   4. D. Premolars
   Answer: A
2. The eclipse formed when the moon comes between the sun and the earth is known as……………
   1. A. Annular eclipse
   2. B. Lunar eclipse
   3. C. Solar eclipse
   4. D. Total eclipse
   Answer: C
3. The element with the chemical symbol S is ……
   1. A. Silicon
   2. B. Silver
   3. C. Sodium
   4. D. Sulphur
   Answer: D
4. The term leaching in soils refers to .....
   1. A. Accumulation of organic matter
   2. B. Decomposition of plant material
   3. C. Fixation of nitrogen
   4. D. Removal of soil nutrients by water
   Answer: D
5. Which of the following statements about plant cell is correct?
   1. A. It does not have a nucleus
   2. B. It contains large vacuoles
   3. C. It is surrounded by the cell membrane only
   4. D. It does not have a definite shape
   Answer: B
6. An example of a derived quantity is
   1. A. Length
   2. B. Mass
   3. C. Temperature
   4. D. Volume
   Answer: D
7. Solid non-metals normally break into pieces when hammered because they are
   1. A. Brittle
   2. B. Ductile
   3. C. Lustrous
   4. D. Malleable
   Answer: A
8. Young rabbits are called
   1. A. Bunnies
   2. B. Cubs
   3. C. Fingerlings
   4. D. Kids
   Answer: A
9. Producers in an ecosystem are plants that
   1. A. Attract insects
   2. B. Feed on other plants
   3. C. Feed on dead materials
   4. D. Manufacture their own food
   Answer: D
10. The form of energy produced from the nucleus of an atom is termed
    1. A. Chemical energy
    2. B. Mechanical energy
    3. C. Nuclear energy
    4. D. Thermal energy
    Answer: C

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11. Which of the following elements is a semi-metal?
    1. A. Carbon
    2. B. Nitrogen
    3. C. Silicon
    4. D. Sodium
12. A system of farming that leads to continuous destruction of virgin forests is
    1. A. Mixed farming
    2. B. Mixed cropping
    3. C. Pastoral farming
    4. D. Shifting farming
13. The by-products of respiration are
    1. A. Carbon dioxide and heat
    2. B. Carbon dioxide and water
    3. C. Oxygen and heat
    4. D. Oxygen and water
14. Which of the following statements about a force are correct?
    
    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. A. I and II only
    2. B. I and III only
    3. C. I, III and IV only
    4. D. I, II, III and IV
15. Which of the following substances is a solid-gas mixture?
    1. A. Lather
    2. B. Bronze
    3. C. Steel
    4. D. Smoke
16. Weeds on a school farm could be controlled by
    1. A. Handpicking
    2. B. Mowing
    3. C. Ploughing
    4. D. Tilling
17. An example of a non-living tissue used in osmosis experiment is
    1. A. Cellophane
    2. B. Filter paper
    3. C. Potato
    4. D. Polythene
18. Kerosene is poured on the surface of a pond in order to
    1. A. Make it unsafe for human consumption
    2. B. Make it safe for animal consumption
    3. C. Increase the surface tension
    4. D. Break the surface tension
19. Which of the following processes is used to separate insoluble solids from liquids?
    1. A. Crystallization
    2. B. Evaporation
    3. C. Filtration
    4. D. Sublimation
20. The process of removing unproductive poultry birds from a flock is referred to as
    1. A. Candling
    2. B. Culling
    3. C. Dehorning
    4. D. Drenching
21. Which of the following pairs of diseases can be spread easily when food is exposed to houseflies?
    1. A. Dysentery and malaria
    2. B. Malaria and tuberculosis
    3. C. Dysentery and cholera
    4. D. Cholera and tuberculosis
22. The pressure in fluids
    1. A. Acts differently in all directions
    2. B. Acts upwards at any point
    3. C. Decreases with depth
    4. D. Increases with depth
23. Which of the following processes involve a change in the state of matter from liquid to solid?
    1. A. Evaporation
    2. B. Freezing
    3. C. Melting
    4. D. Sublimation
24. Which of the following food items contains the highest amount of dietary fiber?
    1. A. Beans
    2. B. Bread
    3. C. Cabbage
    4. D. Egg
25. An example of a disease vector is
    1. A. Earthworm
    2. B. Liver fluke
    3. C. Tapeworm
    4. D. Tick
26. Which of the following devices is made of semiconductor?
    1. A. Capacitor
    2. B. Inductor
    3. C. Resistor
    4. 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. A. I and II only
    2. B. I and III only
    3. C. I, II and IV only
    4. D. I, III and IV only
28. The study of the soil profile of an area helps the farmer to
    1. A. Control weed growth
    2. B. Determine the soil temperature
    3. C. Determine the types of crop to grow
    4. 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. A. Becomes soft
    2. B. Changes colour to brown
    3. C. Changes colour to blue-black
    4. D. Is decolorized
30. Which of the following source(s) of energy is/are renewable?
    
    I. Solar
    
    II. Crude oil
    
    III. Wind
    1. A. I only
    2. B. I and II only
    3. C. I and III only
    4. D. I, II and III
31. Which of the following substances is a compound?
    1. A. Hydrogen
    2. B. Nitrogen
    3. C. Oxygen
    4. D. Water
32. A disease-causing organism that is most difficult to control in crop production is
    1. A. Bacterium
    2. B. Fungus
    3. C. Nematode
    4. D. Virus
33. Which of the following organisms is/are multicellular?
    
    I. Amoeba
    
    II. Paramecium III. Onion
    1. A. I only
    2. B. III only
    3. C. I and III only
    4. D. II and III only
34. In electronic circuits, LEDs are used to indicate the absence or presence of
    1. A. Emitter and collector
    2. B. Electric current
    3. C. P-N junction
    4. D. Voltage source
35. Steel is an alloy of iron and
    1. A. Aluminum
    2. B. Carbon
    3. C. Silicon
    4. D. Gold
36. Soil aeration could be improved through
    1. A. Mulching
    2. B. Irrigation
    3. C. Soil drainage
    4. D. Fertilizer application
37. Which of the following pairs of structures are parts of the respiratory system of humans?
    1. A. Fallopian tube and alveoli
    2. B. Pharynx and esophagus
    3. C. Trachea and alveoli
    4. D. Trachea and duodenum
38. Which of the following effects is not a result of illegal connection of electricity? It can
    1. A. Lead to fire outbreak
    2. B. Lead to frequent power cut-off
    3. C. Increase the flow of current in the supply chain
    4. D. Cause damage to electrical appliances
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. A. I only
    2. B. I and II only
    3. C. I and III only
    4. D. II and III only
40. An entrepreneur's decision as to what to produce is a/an
    1. A. Co-ordinating function
    2. B. Organizing function
    3. C. Planning function
    4. D. Supervising function

Paper 2: Theory

1. (a) The diagram represents the stages in the life cycle of a mosquito.
   
   
   
   (i) Name each of the stages labelled I, II, III and IV.
   
   (ii) State how stage II obtains oxygen.
   
   (iii) State two methods of controlling each of the stages labelled III and IV.
   
   (b) Different laboratory set-ups for separation of mixtures.
   
   
   
   (i) Name each part labelled I, II, III, IV and VI.
   
   (ii) Name the separation method represented by each diagram.
   
   (iii) Which set-up is used to obtain clear water from muddy water?
   
   (iv) Which set-up is used to obtain salt from salt solution?
   
   (c) Instruments used in the laboratory.
   
   
   
   (i) Identify each instrument labelled I, II, III, IV and V.
   
   (ii) State one use of each of the instruments labelled I, II, III and IV.
   
   (iii) Record the volume of liquid in instrument labelled V.
   
   (d) Diagram of digestive system in farm animals.
   
   
   
   (i) Name each part labelled I, II, III and IV.
   
   (ii) State one function of each of the parts labelled II and IV.
   
   (iii) Name two farm animals with this digestive system.
   
   (iv) Mention two diseases affecting this class of farm animals.
2. (a) (i) Name the two elements that combine to form water.
   
   (ii) Write a balanced chemical equation showing how water is formed.
   
   (b) State two ways of maintaining balance in an ecosystem.
   
   (c) (i) Define fertile soil.
   
   (ii) State two factors causing loss of soil fertility.
   
   (d) Classify the following as magnetic or non-magnetic: wood, steel blade, rubber, glass jar.
3. (a) (i) Define seed germination.
   
   (ii) State two conditions necessary for seed germination.
   
   (b) List four methods to identify farm animals.
   
   (c) Explain why a sharp knife cuts better than a blunt knife.
   
   (d) State three differences between metals and non-metals.
4. (a) (i) What is debeaking?
   
   (ii) Why is debeaking important in poultry?
   
   (b) (i) What force allows a steel needle to float on water?
   
   (ii) List three substances to make the needle sink.
   
   (c) (i) Why is gold used for jewellery instead of iron?
   
   (ii) One way to prevent rusting.
   
   (d) (i) Name two elements of climate.
   
   (ii) Name equipment to measure these elements.
5. (a) (i) Define refraction of light.
   
   (ii) Sketch path of light from air to glass.
   
   (b) Why is it hard to separate iron and sulphur after strong heating?
   
   (c) (i) Give two human digestive enzymes.
   
   (ii) Where are these enzymes produced?
   
   (d) List four fertilizer application methods.
6. (a) Choose from: carbon dioxide, gold, bronze, iron, oxygen, ink.
   
   (i) Which supports burning?
   
   (ii) Used as jewellery?
   
   (iii) Used to make statues?
   
   (b) (i) Name two circulatory diseases.
   
   (ii) One way to prevent each.
   
   (c) (i) Give two major plant nutrients.
   
   (ii) Give two minor plant nutrients.
   
   (d) (i) State two properties of a good thermometric liquid.
   
   (ii) Give two examples of such liquids.

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