BECE 2005 Integrated Science Paper 1 Objectives
BECE PAST QUESTIONS AND ANSWERS
BECE 2005 INTEGRATED SCIENCE
OBJECTIVES - Paper 1
1. Hydrogen is represented by the chemical symbol H2. This symbol represents
A. two molecules of hydrogen
B. two atoms of hydrogen
C. two elements of hydrogen
D. two ions of hydrogen
2. A metal expands when there is
A. an increase in heat energy
B. an increase in number of electrons
C. a decrease in potential energy
D. a decrease in distance between atoms
3. A safety device which opens an electrical circuit to prevent too much current from passing through the circuit is the
A. earth wire
B. lightning conductor
C. fuse
D. switch
4. An object is placed 20 cm in front of a plane mirror. The distance between the object and the image is
A. 20 cm
B. 40 cm
C. 60 cm
D. 80 cm
5. In which of the following circuit diagrams below will the bulb light?
6. The source of all forms of energy can be traced to
A. clouds
B. earthquakes
C. tides
D. sunlight
7. When a mango is falling from a tree, its potential energy is changed to
A. sound energy
B. heat energy
C. kinetic energy
D. chemical energy
8. Electricity is used by appliances to do work. This means that electricity is a form of
A. energy
B. force
C. generator
D. machine
9. A force of 2N moves a body through a distance of 10 m. Calculate the work done.
A. 5 J
B. 8 J
C. 12 J
D. 20 J
The diagram below shows a lever system used to move a stone. Use it to answer Questions 10 and 11
10. The distance X is the
A. effort distance
B. load distance
C. fulcrum
D. lever arm
11. Less effort is required to move the stone when the
A. distance Y is equal to X
B. distance Y is greater than X
C. distance Y is less than X
D. stone is at the pivot
12. An omnivore is an animal that feeds on
A. raw food
B. fresh foods
C. cooked foods
D. all kinds of food
13. A meal containing all the essential nutrients in the right amounts is said to be
A. delicious
B. balanced
C. well-cooked
D. rich in fibre
14. The disease associated with insufficient intake of proteins in children is
A. goiter
B. kwashiorkor
C. rickets
D. scurvy
15. When testing for proteins in a food substance using Fehling’s solution, the expected colour change is
A. blue
B. purple
C. blue-black
D. brick-red
16. The substance that enables green plants to trap sunlight for the manufacture of food is
A. chlorophyll
B. chloroplast
C. phloem
D. xylem
17. In man, the conversion of poisonous substances into harmless forms takes place in the
A. bladder
B. duodenum
C. kidney
D. liver
18. Which of the following life processes is represented by the equation below?
Glucose + Oxygen → Water + Carbon dioxide + Energy
A. Digestion
B. Excretion
C. Photosynthesis
D. Respiration
19. Chlorine gas is passed through water during purification to
A. kill germs
B. cause suspended particles to settle
C. soften the water
D. give taste to the water
20. Arrange the following sources of water in the order of increasing contamination
I. Rain
II. Stream
III. Well
IV. Borehole
A. I, II, IV, III
B. II, III, I, IV
C. I, IV, III, II
D. III, II, IV, I
21. A solution in which no more solute will dissolve at a given temperature is said to be
A. concentrated
B. dilute
C. homogeneous
D. saturated
22. A clear solution of sugar was cooled from 100°C to 25°C. Some solid sugar was seen to have formed out of the solution after cooling. This shows that sugar
A. does not dissolve in cold water
B. does not dissolve in hot water
C. dissolves more in hot water than in cold water
D. dissolves more in cold water than in hot water
23. Water is sometimes referred to as a universal solvent because it
A. is the purest liquid on earth
B. is the commonest liquid on earth
C. is found in all living cells
D. dissolves most substances
24. The charge of sulphur in the compound SO2 is
A. -2
B. +2
C. -4
D. +4
25. The part of the soil that supports plant growth is that part which
A. dissolves in water
B. retains less water
C. contains the humus
D. is closer to the roots
26. Plants do not grow well in gravel because the
A. air spaces are too big to hold water
B. air spaces are too small for the roots
C. particles cannot absorb air
D. particles cannot contain nutrients.
27. Which of the following parasites lives in the blood of humans?
A. Louse
B. Plasmodium
C. Tapeworm
D. Tick
28. The carrier of the malaria parasite is the
A. black fly
B. tsetse fly
C. female anopheles mosquito
D. male anopheles mosquito
29. Which of the following practices is a method of controlling guinea worm disease?
A. Clearing bushes around homes
B. Ensuring that rivers flow rapidly
C. Protecting one’s feet before stepping into rivers
D. Protecting one’s self against mosquito bites.
30. The humidity of the atmosphere is measured with
A. an anemometer
B. a barometer
C. a hygrometer
D. a hydrometer
31. How long does it take the moon to move completely around the earth?
A. 1 day
B. 28 days
C. 30 days
D. 365 days
32. Steel is an example of a
A. solid in solid mixture
B. solid in liquid mixture
C. gas in solid mixture
D. liquid in liquid mixture
33. Which of the following elements is a metal?
A. Carbon
B. Nitrogen
C. Sulphur
D. Sodium
34. Metals that are usually used to make ornaments have low
A. conductivity
B. ductility
C. malleability
D. reactivity
35. The food processing method in which germs are prevented from multiplying by applying a low temperature is
A. canning
B. drying
C. pickling
D. refrigeration
36. The function of blood platelets is to
A. carry carbon dioxide.
B. fight against diseases
C. help in clotting
D. help maintain constant body temperature
37. A fish is able to swim with little resistance in water because it has
A. fins
B. gills
C. a streamlined body
D. the ability to make use of a limited oxygen supply.
38. When a person jumps up, he/she is able to come down because of the
A. pull of the earth’s gravitational force
B. pull of the earth’s magnetic force
C. resistance of the earth’s atmosphere to the upward motion
D. pressure of the earth’s atmosphere on the person
39. A metal displaces 5.0 cm3 of water when completely immersed in water. If the mass of the metal is 35.0 g, calculate its density.
A. 7.0 g cm-3
B. 30. 0 g cm-3
C. 40.0 g cm-3
D. 175.0 g cm-3
40. Oxygen from the air is able to get into the blood by
A. capillarity
B.
diffusion
C.
osmosis
D.
suction
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