Science and Nature Quiz for Grade 3

What is the process by which plants make their food?

• Respiration

• Photosynthesis

• Digestion

• Fermentation

Which of the following is NOT a state of matter?

• Solid

• Liquid

• Gas

• Plastic

What force pulls objects towards the Earth?

• Magnetism

• Gravity

• Friction

• Electricity

What part of the plant conducts photosynthesis?

• Root

• Stem

• Leaf

• Flower

Which planet is known as the Red Planet?

• Earth

• Mars

• Jupiter

• Venus

What is the boiling point of water?

• 100 degrees Celsius

• 90 degrees Celsius

• 212 degrees Fahrenheit

• Both A and C

How many planets are in our solar system?

• 7

• 8

• 9

• 10

What gas do living beings need to breathe?

• Carbon dioxide

• Oxygen

• Nitrogen

• Hydrogen

Which of the following is a renewable resource?

• Coal

• Oil

• Solar energy

• Natural gas

What is the center of an atom called?

• Electron

• Neutron

• Nucleus

• Proton