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Science Quiz

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

Which organ is responsible for filtering waste products from the blood?

a)

Liver

b)

Heart

c)

Kidney

d)

Lungs

2.

The main function of red blood cells is to

a)

Fight infection

b)

Carry oxygen

c)

Produce hormones

d)

Digest food

3.

Which part of the digestive system absorbs digested food?

a)

Stomach

b)

Large intestine

c)

Small intestine

d)

Oesophagus

4.

Which gas is inhaled during respiration?

a)

Carbon dioxide

b)

Oxygen

c)

Nitrogen

d)

Hydrogen

5.

The organ that controls thinking, memory, and movement is the

a)

Heart

b)

Brain

c)

Spine

d)

Liver

6.

Which blood vessel carries blood away from the heart?

a)

Vein

b)

Capillary

c)

Artery

d)

Valve

7.

Photosynthesis mainly takes place in the

a)

Root

b)

Stem

c)

Flower

d)

Leaf

8.

The raw materials needed for photosynthesis are

a)

Oxygen and glucose

b)

Carbon dioxide and water

c)

Sunlight and oxygen

d)

Water and glucose

9.

Which of the following is NOT a characteristic of living things?

a)

Growth

b)

Movement

c)

Decay

d)

Respiration

10.

MRS GREN represents all EXCEPT

a)

Growth

b)

Reproduction

c)

Energy

d)

Nutrition

11.

Which of these shows reproduction in plants?

a)

Germination

b)

Pollination

c)

Transpiration

d)

Photosynthesis

12.

Which organ helps in digestion by producing bile?

a)

Kidney

b)

Pancreas

c)

Liver

d)

Gall bladder

13.

An example of a non-living thing is

a)

Mushroom

b)

Virus

c)

Stone

d)

Bacteria

14.

The function of the lungs is to

a)

Digest food

b)

Pump blood

c)

Exchange gases

d)

Control movement

15.

Which system transports nutrients and oxygen around the body?

a)

Digestive

b)

Respiratory

c)

Circulatory

d)

Nervous

16.

Which state of matter has a definite volume but no definite shape?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

17.

Melting is the change from

a)

Liquid to solid

b)

Solid to gas

c)

Solid to liquid

d)

Gas to liquid

18.

Which of the following is a mixture?

a)

Water

b)

Oxygen

c)

Air

d)

Iron

19.

The chemical symbol for hydrogen is

a)

O

b)

H

c)

Hg

d)

He

20.

Which process changes liquid to gas without boiling?

a)

Condensation

b)

Freezing

c)

Evaporation

d)

Melting

21.

Common salt is mainly used to

a)

Purify water

b)

Preserve food

c)

Produce oxygen

d)

Make fuel

22.

Which of the following is an element?

a)

Sugar

b)

Water

c)

Oxygen

d)

Salt

23.

Freezing occurs when a substance changes from

a)

Gas to liquid

b)

Liquid to solid

c)

Solid to gas

d)

Gas to solid

24.

Which state of matter has particles that move freely and rapidly?

a)

Solid

b)

Liquid

c)

Gas

d)

Ice

25.

Iron is commonly used because it is

a)

Transparent

b)

Brittle

c)

Strong

d)

Colourless

26.

Which form of energy makes objects visible?

a)

Heat

b)

Light

c)

Sound

d)

Electrical

27.

A lever is an example of a

a)

Source of energy

b)

Simple machine

c)

Form of motion

d)

Natural force

28.

The force that pulls objects toward the Earth is

a)

Magnetism

b)

Friction

c)

Gravity

d)

Tension

29.

Which energy is produced by vibrating objects?

a)

Heat

b)

Sound

c)

Light

d)

Electrical

30.

Which of these is a source of renewable energy?

a)

Coal

b)

Petrol

c)

Sun

d)

Diesel

31.

A pulley is mainly used to

a)

Produce electricity

b)

Lift heavy loads

c)

Generate heat

d)

Reduce friction only

32.

Which of the following produces electrical energy?

a)

Generator

b)

Lever

c)

Wheel

d)

Ramp

33.

Motion occurs when an object

a)

Changes shape

b)

Changes colour

c)

Changes position

d)

Changes temperature

34.

Which energy is associated with temperature?

a)

Light

b)

Heat

c)

Sound

d)

Electrical

35.

Which simple machine is used in a well to draw water?

a)

Lever

b)

Inclined plane

c)

Pulley

d)

Wheel

36.

ICT stands for

a)

Information Control Technology

b)

International Communication Technology

c)

Information and Communication Technology

d)

Internet and Computer Technology

37.

The brain of the computer is the

a)

Monitor

b)

Keyboard

c)

CPU

d)

Mouse

38.

Which of the following is an input device?

a)

Printer

b)

Monitor

c)

Mouse

d)

Speaker

39.

One danger of mobile phone misuse is

a)

Better communication

b)

Addiction

c)

Learning support

d)

Easy research

40.

Which of these is a non-renewable energy source?

a)

Wind

b)

Sun

c)

Coal

d)

Water

41.

Wet hands should not touch electrical appliances because

a)

They reduce speed

b)

Water conducts electricity

c)

Electricity dries water

d)

It damages appliances

42.

Air pollution is mainly caused by

a)

Trees

b)

Smoke and fumes

c)

Rainfall

d)

Wind

43.

Recycling helps to

a)

Increase pollution

b)

Destroy waste

c)

Reuse materials

d)

Burn refuse

44.

Global warming is caused mainly by

a)

Excess rainfall

b)

Greenhouse gases

c)

Strong winds

d)

Soil erosion

45.

One way to conserve the environment is to

a)

Cut down trees

b)

Waste water

c)

Plant trees

d)

Burn plastics

46.

Who invented the electric bulb?

a)

Isaac Newton

b)

Thomas Edison

c)

Michael Faraday

d)

Albert Einstein

47.

The telephone was invented by

a)

Thomas Edison

b)

Alexander Graham Bell

c)

Nikola Tesla

d)

James Watt

48.

Isaac Newton is best known for discovering

a)

Electricity

b)

Magnetism

c)

Gravity

d)

Motion

49.

Which of the following is a household appliance?

a)

Tractor

b)

Generator

c)

Television

d)

Satellite

50.

The main purpose of technology is to

a)

Replace humans

b)

Make life easier

c)

Increase stress

d)

Reduce thinking

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