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Exploring the Wonders of Science

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

What is the chemical symbol for water?

a)

H2O3

b)

H2O

c)

H2O2

d)

O2H

2.

What is the process by which plants make their food?

a)

Transpiration

b)

Photosynthesis

c)

Digestion

d)

Respiration

3.

What force pulls objects toward the Earth?

a)

Magnetism

b)

Gravity

c)

Electromagnetism

d)

Friction

4.

What is the largest planet in our solar system?

a)

Earth

b)

Jupiter

c)

Saturn

d)

Mars

5.

What do we call the change of state from liquid to gas?

a)

Freezing

b)

Condensation

c)

Sublimation

d)

Vaporization

6.

What is the basic unit of life?

a)

Cell

b)

Tissue

c)

Organ

d)

Organism

7.

What gas do living beings need to breathe?

a)

Oxygen

b)

Hydrogen

c)

Nitrogen

d)

Carbon Dioxide

8.

What is the name of the scientist who proposed the theory of evolution?

a)

Charles Darwin

b)

Albert Einstein

c)

Isaac Newton

d)

Galileo Galilei

9.

What is the main source of energy for the Earth?

a)

Geothermal energy

b)

Wind energy

c)

The Sun

d)

The Moon

10.

What do we call the movement of the Earth around the Sun?

a)

Tilt

b)

Rotation

c)

Orbit

d)

Revolution

11.

What is the smallest unit of matter?

a)

Quark

b)

Atom

c)

Molecule

d)

Electron

12.

What type of animal is known for laying eggs?

a)

Mammals and amphibians

b)

Fish and insects

c)

Birds and reptiles

d)

Arachnids and crustaceans

13.

What is the name of the force that opposes motion?

a)

Inertia

b)

Momentum

c)

Gravity

d)

Friction

14.

What is the term for a substance that speeds up a chemical reaction?

a)

inhibitor

b)

reactant

c)

catalyst

d)

solvent

15.

What is the name of the organ that pumps blood in the human body?

a)

liver

b)

lungs

c)

heart

d)

kidneys