The concept of gravity was discovered by which famous physicist?

• Albert Einstein

• Sir Isaac Newton

• Galileo Galilei

• Stephen Hawking

What is the hardest natural substance on Earth?

• Gold

• Sapphire

• Diamond

• Crystal

Which is the main gas that makes up the Earth’s atmosphere?

• Oxygen

• Nitrogen

• Argon

• Carbon dioxide

Roughly how long does it take for the sun’s light to reach Earth ?

• 8 hours

• 8 minutes

• 8 days

• 8 weeks

Which famous British physicist wrote A Brief History of Time?

• Michael Faraday

• Sir Isaak Newton

• John Dalton

• Stephen Hawking

At what temperature are Celsius and Fahrenheit equal?

• - 50

• - 40

• + 50

• + 40

What is the biggest planet in our solar system?

• Saturn

• Jupiter

• Mars

• Earth

What was the name of the first man-made satellite launched by the Soviet Union in 1957?

• Apollo 1

• Explorer 1

• Sputnik 1

• Siluet 1

What is a material that will not carry an electrical charge called?

• Conductor

• Semiconductor

• Cooler

• Insulator

What is the study of mushrooms called?

• Botany

• Mycology

• Dendrology

• Astronomy