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Science Multiple Choice Worksheet

Total questions: 47

Worksheet time: 24mins

Name
Class
Date
1.

What do plants need to make food?

a)

Sunlight, water, and soil

b)

Soil

c)

Oxygen

d)

Wind

2.

What is the process of changing liquid to gas called?

a)

Evaporation

b)

Condensation

c)

Precipitation

d)

Melting

3.

Which tool would you use to measure temperature?

a)

Thermometer

b)

Ruler

c)

Balance

d)

Graduated cylinder

4.

What force pulls objects toward the Earth?

a)

Gravity

b)

Friction

c)

Magnetism

d)

Electricity

5.

Which planet is known as the Red Planet?

a)

Mars

b)

Venus

c)

Saturn

d)

Mercury

6.

What is a habitat?

a)

Where an animal lives

b)

A type of rock

c)

A kind of plant

d)

A rainstorm

7.

What are the three states of matter?

a)

Solid, liquid, gas

b)

Hard, soft, liquid

c)

Water, ice, air

d)

Atom, molecule, element

8.

How long does it take the Earth to orbit the Sun?

a)

One year

b)

One day

c)

One month

d)

Ten years

9.

What part of a cell contains the genetic material?

a)

Nucleus

b)

Cell wall

c)

Cytoplasm

d)

Chloroplast

10.

Engineers design solutions to problems. What is the first step?

a)

Identify a problem

b)

Build a model

c)

Test the solution

d)

Write a book

11.

Which layer of Earth do we live on?

a)

Crust

b)

Mantle

c)

Outer core

d)

Inner core

12.

What gas do humans need to breathe?

a)

Oxygen

b)

Carbon dioxide

c)

Nitrogen

d)

Hydrogen

13.

Which body system helps you move?

a)

Muscular system

b)

Skeletal system

c)

Digestive system

d)

Nervous system

14.

What is the main source of energy for Earth?

a)

The Sun

b)

The Moon

c)

Wind

d)

Gravity

15.

Which property best describes an object's ability to float?

a)

Buoyancy

b)

Mass

c)

Volume

d)

Temperature

16.

What do we call animals that eat only plants?

a)

Herbivores

b)

Carnivores

c)

Omnivores

d)

Producers

17.

What tool do you use to look at very small objects?

a)

Microscope

b)

Telescope

c)

Binoculars

d)

Periscope

18.

The process by which plants make their own food is called?

a)

Photosynthesis

b)

Respiration

c)

Germination

d)

Pollination

19.

Which simple machine is an inclined plane wrapped around a cylinder?

a)

Screw

b)

Lever

c)

Pulley

d)

Wedge

20.

What type of energy is in motion?

a)

Kinetic energy

b)

Potential energy

c)

Stored energy

d)

Chemical energy

21.

What is erosion?

a)

Movement of rock and soil

b)

Breaking down rock

c)

Forming new rock

d)

Melting of ice

22.

What organ pumps blood through your body?

a)

Heart

b)

Lungs

c)

Brain

d)

Liver

23.

Which planet is closest to the Sun?

a)

Mercury

b)

Venus

c)

Earth

d)

Mars

24.

What is a mixture?

a)

Two or more substances combined

b)

One element

c)

One compound

d)

A dissolved solid

25.

What instrument measures air pressure?

a)

Barometer

b)

Thermometer

c)

Hygrometer

d)

Anemometer

26.

What is the powerhouse of the cell?

a)

Mitochondria

b)

Nucleus

c)

Ribosome

d)

Chloroplast

27.

Which change is chemical to electrical energy?

a)

Chemical to electrical

b)

Heat to light

c)

Electric to sound

d)

Mechanical to heat

28.

Which layer of the atmosphere is closest to Earth?

a)

Troposphere

b)

Stratosphere

c)

Mesosphere

d)

Thermosphere

29.

What causes the seasons?

a)

Tilt of the Earth's axis

b)

Distance from the Sun

c)

Rotation of Earth

d)

Gravity changes

30.

In an experiment, what is a statement that can be tested?

a)

Something that can be tested

b)

Something that stays the same

c)

The results

d)

The hypothesis

31.

What is the main gas found in the Earth's atmosphere?

a)

Carbon Dioxide

b)

Nitrogen

c)

Oxygen

d)

Hydrogen

32.

What is the smallest unit of life?

a)

Atom

b)

Organ

c)

Molecule

d)

Cell

33.

Which planet is known for its rings?

a)

Saturn

b)

Jupiter

c)

Uranus

d)

Neptune

34.

What is the main gas found in the air we breathe?

a)

Nitrogen

b)

Hydrogen

c)

Carbon Dioxide

d)

Oxygen

35.

Which part of the plant is responsible for photosynthesis?

a)

Stem

b)

Flowers

c)

Roots

d)

Leaves

36.

What is the chemical symbol for water?

a)

H2O

b)

O2

c)

NaCl

d)

CO2

37.

Which organ in the human body is primarily responsible for pumping blood?

a)

Lungs

b)

Kidneys

c)

Liver

d)

Heart

38.

What is the largest planet in our solar system?

a)

Earth

b)

Mars

c)

Jupiter

d)

Saturn

39.

Which organ is responsible for pumping blood throughout the body?

a)

Kidneys

b)

Heart

c)

Lungs

d)

Liver

40.

What is the smallest unit of life?

a)

Cell

b)

Tissue

c)

Atom

d)

Molecule

41.

Which element is essential for the formation of bones and teeth?

a)

Iron

b)

Sodium

c)

Calcium

d)

Potassium

42.

Which gas is commonly known as laughing gas?

a)

Hydrogen

b)

Oxygen

c)

Carbon Dioxide

d)

Nitrous Oxide

43.

What is the boiling point of water at sea level?

a)

50°C

b)

100°C

c)

0°C

d)

150°C

44.

Which gas do plants primarily absorb from the atmosphere during photosynthesis?

a)

Hydrogen

b)

Nitrogen

c)

Carbon Dioxide

d)

Oxygen

45.

What is the chemical symbol for water?

a)

CO2

b)

NaCl

c)

H2O

d)

O2

46.

Which planet is known as the Red Planet?

a)

Saturn

b)

Jupiter

c)

Venus

d)

Mars

47.

What is the largest organ in the human body?

a)

Skin

b)

Liver

c)

Heart

d)

Brain

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