BECE 1999 Science Paper 1 Objectives
BECE PAST QUESTIONS AND ANSWERS
BECE 1999 INTEGRATED SCIENCE
OBJECTIVES - Paper 1
1. A mixture of sand and common salt could be
separated by
A. filtration and distillation
B. dissolution and evaporation
C. dissolution, sedimentation and evaporation
D. dissolution, filtration and evaporation
E. sedimentation and filtration
A. filtration and distillation
B. dissolution and evaporation
C. dissolution, sedimentation and evaporation
D. dissolution, filtration and evaporation
E. sedimentation and filtration
2. What structure links the mouth to the
stomach
A. Colon
B. Duodenum
C. Oesophagus
D. Rumen
E. Trachea
A. Colon
B. Duodenum
C. Oesophagus
D. Rumen
E. Trachea
3. Which of the following organisms causes
bilharziasis?
A. Blood fluke?
B. Bloodworm
C. Liver fluke
D. Roundworm
E. Tapeworm
A. Blood fluke?
B. Bloodworm
C. Liver fluke
D. Roundworm
E. Tapeworm
4. Which of the following processes is a
chemical change?
A. Digestion of starch by saliva
B. Melting of wax
C. Dissolution of sugar in water
D. Boiling of water
E. Evaporation of sea water
A. Digestion of starch by saliva
B. Melting of wax
C. Dissolution of sugar in water
D. Boiling of water
E. Evaporation of sea water
5. An atom has 5 protons and 5 neutrons in its
nucleus. How many electrons are present in the atom?
A. 1
B. 2
C. 5
D. 9
A. 1
B. 2
C. 5
D. 9
E. 10
6.
Which of the following features in plants are used for
defence?
A. Buds
B. Leaf spines
C. Pitchers
D. Roots
E. Tendrils
A. Buds
B. Leaf spines
C. Pitchers
D. Roots
E. Tendrils
7.
The ability of birds to fly depends on
A. Their hollow hones only
B. Their flight feathers only
C. Their feathers covering their bodies
D. Their hollow bones and flight feathers
E. Their light bodies only
A. Their hollow hones only
B. Their flight feathers only
C. Their feathers covering their bodies
D. Their hollow bones and flight feathers
E. Their light bodies only
8.
Gases are more compressible than solids because:
A. Solids have harder surfaces
B. There are wider spaces between gas molecules
C. Gases have fixed volumes
D. The particles of solids are regularly arranged
E. The molecules of gases are randomly arranged
A. Solids have harder surfaces
B. There are wider spaces between gas molecules
C. Gases have fixed volumes
D. The particles of solids are regularly arranged
E. The molecules of gases are randomly arranged
9.
Which of the following statements about machines
is/are true?
I. The commonest and simplest of all machines is the lever
II. The efficiency of a machine is the ratio of work output to work input
III. The efficiency of a machine is usually less than one
IV. Machines make working much easier and convenient
A. I only
B. I and II only
C. I and III only
D. I, II and III only
E. I, II, III and IV
I. The commonest and simplest of all machines is the lever
II. The efficiency of a machine is the ratio of work output to work input
III. The efficiency of a machine is usually less than one
IV. Machines make working much easier and convenient
A. I only
B. I and II only
C. I and III only
D. I, II and III only
E. I, II, III and IV
10. Which of the
following substances reacts with ammonium chloride to produce ammonia gas?
A. Calcium hydroxide
B. Calcium chloride
C. Calcium carbonate
D. Calcium sulphate
E. Calcium nitrate
A. Calcium hydroxide
B. Calcium chloride
C. Calcium carbonate
D. Calcium sulphate
E. Calcium nitrate
11. Plastic materials
may be used to make the handles of cooking utensils because they are
A. Hard
B. Poor conductors of heat
C. Attractive
D. Easy to wash
E. Not poisonous
A. Hard
B. Poor conductors of heat
C. Attractive
D. Easy to wash
E. Not poisonous
12. Which of the
following substances will turn red litmus paper blue?
A. Hydrochloric acid
B. Sodium chloride solution
C. Sulphuric acid
D. Water
E. Sodium hydroxide
A. Hydrochloric acid
B. Sodium chloride solution
C. Sulphuric acid
D. Water
E. Sodium hydroxide
13. The heat of the
sun reaches the earth through
A. radiation
B. convection
C. conduction
D. both radiation and conduction
E. both radiation and convection
A. radiation
B. convection
C. conduction
D. both radiation and conduction
E. both radiation and convection
14. The mineral salts
in dead organisms become available to the soil through
A. Decomposition
B. Diffusion
C. Fermentation
D. Leaching
E. Manuring
A. Decomposition
B. Diffusion
C. Fermentation
D. Leaching
E. Manuring
15. A ray of light is
incident at an angle of 30° to the surface of a plane mirror. Calculate the
angle of
reflection.
A. 30°
B. 60°
C. 90°
D. 120°
E. 180°
reflection.
A. 30°
B. 60°
C. 90°
D. 120°
E. 180°
16. Salt could be
obtained from sea water by
A. boiling
B. condensation
C. decantation
D. distillation
E. evaporation
A. boiling
B. condensation
C. decantation
D. distillation
E. evaporation
17. A fertilised ovum
is known as
A. a gamete
B. a zygote
C. oocyte
D. an ovary
E. a foetus
A. a gamete
B. a zygote
C. oocyte
D. an ovary
E. a foetus
18. The smallest
planet known in the solar system is
A. Earth
B. Jupiter
C. Mars
D. Mercury
E. Venus
A. Earth
B. Jupiter
C. Mars
D. Mercury
E. Venus
19. The organic
constituent of the soil is
A. Air
B. Humus
C. Mineral salts
D. Rock particles
E. Water
A. Air
B. Humus
C. Mineral salts
D. Rock particles
E. Water
20. A car head lamp
lights up when connected to a battery. What type of energy is obtained from the
battery?
A. Chemical energy
B. Electrical energy
C. Heat energy
D. Light energy
E. Potential energy
A. Chemical energy
B. Electrical energy
C. Heat energy
D. Light energy
E. Potential energy
21. Which of the
following statements about bacteria is true?
I. All infections are caused by bacteria
II. Most bacteria are harmless to man
III. Sterilisation does not kill bacteria
A. I only
B. II only
C. III only
D. II and III only
E. I and II only
I. All infections are caused by bacteria
II. Most bacteria are harmless to man
III. Sterilisation does not kill bacteria
A. I only
B. II only
C. III only
D. II and III only
E. I and II only
22. Which of the
following organisms is a parasite on plants?
A. Bee
B. Butterfly
C. Capsid
D. Red ant
E. Tick
A. Bee
B. Butterfly
C. Capsid
D. Red ant
E. Tick
23. The main parts of
the central nervous system are the
A. brain and nerves
B. spinal cord and the nerves
C. brain and the spinal cord
D. brain, the nerves and the spinal cord
E. brain, the eyes, the ears and the nerves
A. brain and nerves
B. spinal cord and the nerves
C. brain and the spinal cord
D. brain, the nerves and the spinal cord
E. brain, the eyes, the ears and the nerves
24. Which of the
following pairs of diseases can be spread easily when food is exposed to
houseflies?
A. Cholera and Guinea Worm
B. Dysentery and Malaria
C. Dysentery and Guinea Worm
D. Malaria and tuberculosis
E. Dysentery and cholera
A. Cholera and Guinea Worm
B. Dysentery and Malaria
C. Dysentery and Guinea Worm
D. Malaria and tuberculosis
E. Dysentery and cholera
25. Which of the
following activities is a mode of transmission of AIDS?
A. Shaking hands with an infected person
B. Eating with an infected person
C. Having sex with an infected person
D. Sharing clothes with an infected person
E. Sleeping in the same room with an infected person
A. Shaking hands with an infected person
B. Eating with an infected person
C. Having sex with an infected person
D. Sharing clothes with an infected person
E. Sleeping in the same room with an infected person
26. The eclipse of
the moon occurs when the
A. moon and the sun are in a straight line
B. earth and the sun are in a straight line
C. sun is between the earth and the moon
D. earth is between the sun and the moon
E. moon comes between the sun and the earth
A. moon and the sun are in a straight line
B. earth and the sun are in a straight line
C. sun is between the earth and the moon
D. earth is between the sun and the moon
E. moon comes between the sun and the earth
27. Spitting in
public is a bad social habit because it
A. makes the environment humid
B. reduces the amount of air in the body
C. reduces the amount of water in the body
D. releases disease-causing organisms into the environment
E. reduces the amount of saliva in the mouth
A. makes the environment humid
B. reduces the amount of air in the body
C. reduces the amount of water in the body
D. releases disease-causing organisms into the environment
E. reduces the amount of saliva in the mouth
28. The male sex
cells in the flower are found in the
A. filament
B. ovary
C. ovule
D. pollen grains
E. stigma
A. filament
B. ovary
C. ovule
D. pollen grains
E. stigma
29. Which of the
following substances is a pollutant?
A. Domestic waste
B. Fog
C. Nitrogen
D. Oxygen
E. Treated Waste
A. Domestic waste
B. Fog
C. Nitrogen
D. Oxygen
E. Treated Waste
30. Digestion of
protein starts in the
A. duodenum
B. gullet
C. mouth
D. small intestine
E. stomach
A. duodenum
B. gullet
C. mouth
D. small intestine
E. stomach
31. The sun, the
heavenly bodies and the planets form the
A. atmosphere
B. galaxy
C. milky way
D. solar system
E. universe
A. atmosphere
B. galaxy
C. milky way
D. solar system
E. universe
32. Which of the
following practices encourages soil erosion?
A. Planting trees on bare soil
B. Clearing trees and slopes
C. Planting grasses along slopes
D. Ploughing across slopes
E. Preventing bush fires
A. Planting trees on bare soil
B. Clearing trees and slopes
C. Planting grasses along slopes
D. Ploughing across slopes
E. Preventing bush fires
33. Which of the
following metals is an alloy?
A. Aluminium
B. Brass
C. Copper
D. Iron
E. Zinc
A. Aluminium
B. Brass
C. Copper
D. Iron
E. Zinc
34. Which of the
following statements about plants is true?
I. Most plants show movement
II. Green plants manufacture their own food
III. All animals depend directly on plants for food
A. I only
B. II only
C. III only
D. I and II only
E. II and III only
I. Most plants show movement
II. Green plants manufacture their own food
III. All animals depend directly on plants for food
A. I only
B. II only
C. III only
D. I and II only
E. II and III only
35. Which of the
following practices will destroy the breeding grounds of mosquitoes?
A. Sleeping in mosquito nets
B. Spraying with insecticides
C. Using insect repellent
D. Introducing fish into ponds
E. Burying all empty cans
A. Sleeping in mosquito nets
B. Spraying with insecticides
C. Using insect repellent
D. Introducing fish into ponds
E. Burying all empty cans
36. A plastic pen on
rubbing in the hair attracts pieces of paper. What force is responsible for the
attraction?
A. Electrostatic force
B. Frictional force
C. Gravitational force
D. Magnetic force
E. Centripetal force
A. Electrostatic force
B. Frictional force
C. Gravitational force
D. Magnetic force
E. Centripetal force
37. When carbon
dioxide is passed through lime water
A. the lime water becomes warm
B. the lime water turns milky
C. the lime water remains clear
D. lime is produced
E. the lime water decomposes
A. the lime water becomes warm
B. the lime water turns milky
C. the lime water remains clear
D. lime is produced
E. the lime water decomposes
38. Which of the
following solids melts easily on exposure to sunlight?
A. Animal fat
B. Candle wax
C. Plastics
D. Rubber
E. Shea butter
A. Animal fat
B. Candle wax
C. Plastics
D. Rubber
E. Shea butter
39. Which of the
following structures regulate the amount of light that enters the eye?
A. Choroid
B. Cornea
C. Iris
D. Lens
E. Retina
A. Choroid
B. Cornea
C. Iris
D. Lens
E. Retina
40. Leguminous crops
such as beans are cultivated to
A. add humus to the soil
B. increase the nitrate contents of soils
C. add nitrogen to the soil
D. make the soil loamy
E. add protein to the soil
A. add humus to the soil
B. increase the nitrate contents of soils
C. add nitrogen to the soil
D. make the soil loamy
E. add protein to the soil
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