Fun Science Quiz for Grade 4

What is the process by which plants make their own food using sunlight?

• Photosynthesis

• Respiration

• Digestion

• Fermentation

What is the boiling point of water at sea level in degrees Celsius?

• 50°C

• 100°C

• 150°C

• 200°C

Which planet is known as the "Red Planet"?

• Earth

• Mars

• Jupiter

• Venus

What is the chemical symbol for water?

• O

• H

• H2O

• CO2

What force pulls objects toward the center of the Earth?

• Magnetism

• Friction

• Gravity

• Electricity

Which part of the plant is responsible for absorbing water and nutrients from the soil?

• Leaf

• Stem

• Root

• Flower

What gas do humans exhale that plants use for photosynthesis?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Hydrogen

What is the largest planet in our solar system?

• Earth

• Mars

• Jupiter

• Saturn

What is the center of an atom called?

• Electron

• Proton

• Neutron

• Nucleus

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

• Oxygen

• Carbon Dioxide

• Nitrogen

• Hydrogen