General Science Multiple Choice Questions

Iron powder is black in colour and sulphur powder is yellow. A student did two

experiments using iron and sulphur powders.

The results are recorded in the table below.

EXPERIMENT 1 EXPERIMENT 2

Method Mixed and stirred iron

and sulphur together

Heated the iron and

sulphur mixture

Observation Yellow powder with bits

of black in it

A hard gray lump

1. What is the substance observed in Experiment 1?

A. a compound

B. an element

C. a mixture

D. a solution

2. What is the hard gray lump in Experiment 2?

A. Lead

B. Iron oxide

C. Iron sulphide

D. Sulphur dioxide

3. The earth’s atmosphere is a mixture of mostly

A. Carbon dioxide and oxygen

B. Nitrogen and carbon dioxide

C. Nitrogen and oxygen

D. Water vapour and oxygen

4. Which weather front results in short and heavy precipitation?

A. Cold front

B. Occluded front

C. Stationary front

D. Warm front

5. What results when a force causes an object to move?

A. Friction

B. Matter

C. Power

D. Work

6. Which is an example of increasing potential energy?

A. Climbing a ladder

B. Hot water

C. Hitting a baseball

D. Running downhill

7. How does a machine change a force?

A. Direction and mass

B. Size and direction

C. Size and mass

D. Size and input

8. Which of the following statement about sound is correct?

A. Sounds are caused by vibrating matter

B. Sounds can travel in a vacuum

C. Sounds travel faster in air

D. Sound waves cannot be reflected

9. What kind of material would be most suitable in the construction of a recording

studio?

A. Carpet

B. Ceramic tiles

C. Concrete blocks

D. Glass

10. How often do tides occur in the Bahamas?

A. Once a day

B. Once per week

C. Twice per day

D. Twice per week

11. What is the correct way to carry a microscope?

A. hold it swinging in one hand

B. hold the arm and support the base

C. hold the stage and support the base

D. hold the arm and the eye piece

12. Which group is classified as simple plants?

A. algae

B. bacteria

C. ferns

D. mosses

13. Which organism is not a fish?

A. grouper

B. jellyfish

C. marlin

D. Wahoo

14. How many atoms are present in a molecule of ammonia (NH₃)?

A. 2

B. 3

C. 4

D. 5

15. Which is a unit of current?

A. ampere

B. joule

C. volt

D. watt

16. Which is the most abundant gas in the atmosphere?

A. argon

B. helium

C. nitrogen

D. oxygen

17. How many poles does a bar magnet have?

A. 1

B. 2

C. 3

D. 4

18. What is the average human body temperature?

A. 32.0⁰ C

B. 98.6⁰ C

C. 10.0⁰ C

D. 120.6⁰ C

19. What are stationary electric charges called?

A. current electricity

B. magnetism

C. static electricity

D. voltage

20. Which pH indicates a neutral substance?

A. 1

B. 4

C. 7

D. 10

21. What happens to light rays when they strike a transparent material?

A. absorption

B. radiation

C. reflection

D. refraction

22. Which process only takes place when there is light?

A. germination

B. photosynthesis

C. respiration

D. transpiration

23. What is a measure of the average kinetic energy of the molecules in a substance

called?

A. calorie

B. friction

C. heat

D. temperature

24. Which is an example of kinetic energy?

A. a turning windmill

B. a rubber band

C. a spring (spiral)

D. water behind a dam

25. Which job, related to science, studies the tracking of hurricanes?

A. aviation

B. engineering

C. meteorology

D. psychology

26. Which is an example of an inclined plane?

A. a crane

B. a hammer

C. a knife

D. a ramp

27. What forms of energy are produced during a fireworks display?

A. heat and light

B. heat and sound

C. heat, light and sound

D. light and sound

28. Which substance is slightly acidic?

A. ammonia

B. detergent

C. milk of magnesia

D. orange juice

29. Which of the following will be the safest to dink after a hurricane?

A. boiled water

B. tap water

C. rain water

D. well water

30. Which is not a property of metals?

A. brittle/ break easily

B. conduct electricity

C. malleable

D. shiny appearance

31. Which is true of freezing water?

A. changing chemically

B. changing physically

C. gaining energy

D. gaining heat

32. Which will cause an object to remain in motion for a longer time?

A. decreasing fiction

B. increasing mass

C. increasing friction

D. increasing inertia

33. Lynden weighs 300 N. He climbs to the top of a 3 m ladder. How much work did

Lynden do?

A. 100 N

B. 100 Nm

C. 900 N

D. 900 Nm

34. Which is not a living natural resource?

A. animal

B. human

C. plant

D. soil

35. What is the appropriate percentage (%) of CO₂ in the atmosphere?

A. 0.03

B. 0.3

C. 3.0

D. 30.0

36. Which instrument is used to measure relative humidity?

A. anemometer

B. barometer

C. hygrometer

D. thermometer

37. Which process describes the transfer of heat by direct contact of one molecule

with another molecule?

A. conduction

B. convection

C. condensation

D. radiation

38. In which form does heat travel through space?

A. microwaves

B. radio waves

C. invisible light

D. visible light

39. Which organism begins a food chain?

A. carnivore

B. herbivore

C. omnivore

D. producer

40. Which gas is produced when HCI is added to marble chips?

A. carbon dioxide

B. chlorine

C. hydrogen

D. oxygen

41. Sound waves travel fastest through?

A. air

B. steel

C. space

D. water

42. Which electrical component breaks the current when the circuit becomes too

large?

A. battery

B. fuse

C. lamp

D. switch

43. Which part of the atmosphere shows the greatest variation (changes) in

percentage?

A. carbon dioxide

B. nitrogen

C. oxygen

D. water vapour

44. The space surrounding a magnet where it produces a magnetic force is called a?

A. magnetic material

B. magnetic pole

C. magnetic field

D. magnetic induction

45. What happens to a compass needle when the compass is brought near a wire

carrying a current? The needle is…..?

A. deflected

B. demagnetized

C. electrified

D. undisturbed

46. A vibrating rubber band produces the highest pitch if it is?

A. long and loose

B. long and tight

C. short and loose

D. short and tight

47. Which characteristics of a sound is determined by the frequency with which a

material vibrates?

A. decibel

B. loudness

C. pitch

D. quality

48. Why is the air pressure much less, high up in the atmosphere than it is on the

earth’s surface?

A. air molecules are further apart

B. air molecules are moving faster

C. air molecules are weightless

D. air molecules are moving in all directions

49. A cup of hot tea is stirred with two spoons, one metal and one plastic. Why does

the metal spoon feel hotter than the plastic one?

A. Metal is a better conductor than plastic

B. Metal expands more than plastic

C. Metal has higher melting point than plastic

D. Metal radiates heat better than plastic

50. When vapour is cooled, the molecules move slower and the distance between

them become smaller. What processed does this describe?

A. condensation

B. evaporation

C. expansion

D. melting

51. Which area of Science would an airplane pilot study?

A. Aviation

B. Astronomy

C. Astrology

D. Classification

52. Which organism causes AIDS and influenza?

A. bacterium

B. fungus

C. protozoan

D. virus

53. What determines the amount of energy of a sound wave?

A. amplitude

B. frequency

C. velocity

D. wave length

54. Which range of sound waves can be reflected and used for finding distances,

scanning documents and cleaning engine parts?

A. Infrasonic

B. Sonic

C. Supersonic

D. Ultrasonic

55. What happens when all the organisms in a species die?

A. It adapts

B. It diversifies

C. It becomes endangered

D. It becomes extinct

56. What causes an electric current in a conductor?

A. a flow of negatively charged electrons

B. a flow of negatively charged protons

C. a flow of positively charged electrons

D. a flow of positively charged protons

57. What is the electrical pressure which pushes electrons through a circuit called?

A. electric charge

B. resistance

C. static electricity

D. voltage

58. What is the volume of water in the measuring cylinder B and soil Y?

Volume of water

Measuring cylinder B Soil y

A 10mᶟ 40cmᶟ

B 11cmᶟ 39cmᶟ

C 15cmᶟ 35cmᶟ

D 30cmᶟ 30cmᶟ

59. What is the highest pH reading for a strong acid?

A. 1

B. 3

C. 5

D. 7

60. Which body of water has the greatest amount of salt?

A. blue holes

B. lakes

C. mangrove swamps

D. salt ponds

61. Hurricanes usually develop over large bodies of water.

In which ocean do hurricanes which affect The Bahamas develop?

A. Atlantic ocean

B. Arctic ocean

C. Indian ocean

D. Pacific ocean

62. Which row lists the raw materials necessary for photosynthesis?

A carbon dioxide

water

B carbon dioxide

oxygen

C carbohydrate

water

D carbohydrate

oxygen

63. A man lifts a bucket of water 4.5 m, the bucket weighs 1.5 N.

How much work is done in lifting the bucket?

A. 0.33 J

B. 3.00 J

C. 6.00 J

D. 6.75 J

64. Which statement about magnets is incorrect?

A. like poles attract

B. Loadstone is a natural magnet

C. The magnetic field is strongest at the poles

D. Unlike poles attract

65. Which factors determine the field strength between two magnetic bodies?

A. Distance and size

B. Location only

C. Location and distance

D. Size only

66. Ms Brown science class plans to collect data on air pressure, temperature and

wind speed for the month of October.

Which row shows the weather instruments they will need to use?

air pressure temperature wind speed

A Anemometer Hygrometer Barometer

B Barometer Thermometer Anemometer

C Hygrometer Anemometer Hygrometer

D Thermometer Barometer Thermometer

67. How are clouds formed?

A. air is cooled, water vapour condenses around particles to form droplets which

cling together

B. air is warmed; water evaporates around particles which cling together

C. air is cooled, water evaporates into the atmosphere

D. air is warmed and rises into the atmosphere where clouds are formed

68. Which planets are the coldest and the hottest in the solar system?

coldest hottest

A Mars Pluto

B Mercury Mars

C Mercury Pluto

D Pluto Mercury

69. Which planet is the largest planet in the solar system?

A. Jupiter

B. Neptune

C. Uranus

D. Venus

70. Which man – made body orbits (moves around) a planet?

A. constellation

B. comet

C. moon

D. satellite

71. Which electrical component can prevent a circuit overload?

A. a battery

B. a fuse

C. a lamp

D. a switch

72. Which colour refracts from most when white light passes through a prism?

A. blue

B. green

C. yellow

D. red

73. Which gas is added to the atmosphere by the process of combustion,

decomposition, fermentation and respiration?

A. argon

B. carbon dioxide

C. nitrogen

D. oxygen

74. Which device changes mechanical energy to electrical energy?

A. a generator

B. a motor

C. a switch

D. a transformer

75. Which substance is colorless, odorless and tasteless?

A. Alcohol

B. Chlorine

C. Kerosene

D. Water

76. What temperature is 14⁰ below the freezing point of the water on the Fahrenheit

scale?

A. 18⁰ F

B. 50⁰ F

C. 82⁰ F

D. 262⁰F

77. The table lists properties of four samples A, B, C and D. Which sample is in acid?

Sample Property

A Bitter taste

B pH of 7

C Sour taste

D Turns litmus paper blue

78. Which purification method separates a substance into two parts, one of which is

the residue?

A. chromatography

B. chlorination

C. distillation

D. filtration

79. Natural cycles are based on the interdependence between living organisms and

their physical surrounding.

Which natural cycle is dependent on decomposers?

A. Carbon cycle

B. Nitrogen cycle

C. Oxygen cycle

D. Water cycle

80. Andrea is 1 200 meters away from a policeman when a shot is fired. Sound

travels at 300 m/s. How long does it take for the sound to reach Andrea?

A. 0s

B. 0.25s

C. 4.0s

D. 330s

81. Kobe is investigating how sound travels. He taps the prongs of a turning fork on

the laboratory bench and then place the fork into a trough of water

What does he observe when the fork is tapped against the laboratory bench?

A. the prongs break

B. the prongs bend

C. there is no change in the prongs

D. the prongs vibrate and produce a humming noise

82. Which word means the same as the number of vibrations per second?

A. frequency

B. loudness

C. pitch

D. quality

83. An electromagnetic force of 1 200 N lifts a truck 10 meters. How much work was

done?

A. 120 J

B. 1 900 J

C. 1 210 J

D. 12 000 J

84. Which two elements combine to produce sodium chloride?

A. K and C

B. Na and C

C. N and C

D. Si and CI

85. Which forms of energy is ALWAYS produced by fiction?

A. heat

B. light

C. magnetism

D. sound

86. What happens to pure liquid water at a temperature of 32⁰ F?

A. changes from a gas to solid

B. changes from a liquid to a gas

C. changes from a liquid to a solid

D. changes from a solid to a liquid

87. These statements are about weather fronts and pressures. Which statement is

not true?

A. The boundary between two air masses is called a front

B. Low pressure systems form along a front

C. Low pressure is produced when cold air rises over dense hot air

D. In a low pressure system air moves I a counter clockwise direction

88. Which planet is nearest to the Earth?

A. Jupiter

B. Neptune

C. Saturn

D. Uranus

89. On a newly discovered planet, oxygen behaves like carbon dioxide. Which test

result will identify oxygen on this planet?

gas function

A burns with a squeaky pop

B extinguishes a burning splint

C supports combustion

D turns lime water milky

90. Which temperature represents the freezing points of water?

A. 212⁰ F and 100⁰C

B. 212⁰ F and 32⁰F

C. 0⁰C and 100⁰ C

D. 0⁰C and 32⁰F

91. Which is NOT an example of a wheel and a axle?

A. a door knob

B. a faucets handle

C. a pair of pliers

D. a screw driver

92. Which apparatus measure the mass of an object?

A. a balance

B. a measuring cylinder

C. a stop watch

D. a thermometer

93. Which process uses sunlight to make food in a green plant?

A. germination

B. photosynthesis

C. respiration

D. transpiration

94. Why is a car travelling on a wet road most likely to skid?

The wet surface:

A. contains dissolved matter

B. lowers the temperatures of the tires

C. increases the weight of the tires

D. reduces fiction between the tires and the wet road

95. Which gas, inside the gas jar, increases because the candle is burning?

A. carbon dioxide

B. hydrogen

C. oxygen

D. nitrogen

96. Which instrument measures air pressure?

A. anemometer

B. barometer

C. rain gauge

D. thermometer

97. Identify the elements NPK used in fertilizers to help enrich poor soils.

A. neon, phosphorous, potassium

B. neon, potassium, krypton

C. nitrogen, phosphorous, potassium

D. nitrogen, potassium, krypton

98. Which organism is NOT endangered in The Bahamas?

A. Bahama parrot

B. Jack fish

C. Pink flamingo

D. Spiny lobster

99. Which is not a leguminous plant?

A. bean

B. clover

C. peas

D. potatoes

100. Which is NOT a function of human blood?

A. fighting disease

B. producing gametes

C. regulating body temperatures

D. transporting hormones

Answer Key

1. C

2. C

3. C

4. A

5. D

6. A

7. B

8. A

9. A

10. C

11. B

12. A

13. B

14. C

15. A

16. C

17. B

18. B

19. C

20. C

21. D

22. B

23. C

24. A

25. C

26. D

27. C

28. D

29. A

30. A

31. B

32. D

33. D

34. D

35. A

36. C

37. A

38. B

39. D

40. A

41. B

42. B

43. D

44. C

45. A

46. D

47. B

48. A

49. A

50. A

51. A

52. D

53. A

54. D

55. D

56. A

57. A

58. D

59. A

60. A

61. A

62. A

63. D

64. A

65. A

66. B

67. A

68. D

69. A

70. D

71. B

72. A

73. B

74. B

75. D

76. A

77. C

78. D

79. A

80. C

81. D

82. A

83. D

84. B

85. A

86. C

87. C

88. A

89. D

90. D

91. D

92. A

93. B

94. D

95. A

96. B

97. C

98. B

99. D

100. B

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