Exploring Our Solar System Quiz

What is the main material that formed our solar system?

• A big cloud of gas and dust
• Solid rocks
• Liquid water
• Frozen ice

How many planets are there in our solar system?

• Six
• Eight
• Ten
• Twelve

Which planet is known as the hottest in our solar system?

• Earth
• Mars
• Venus
• Mercury

What separates the inner planets from the outer planets?

• The asteroid belt
• The Oort cloud
• The Kuiper belt
• The Milky Way

Which planet is the largest in our solar system?

• Earth
• Jupiter
• Saturn
• Neptune

What are asteroids primarily made of?

• Gas and dust
• Nickel and iron
• Ice and rock
• Water and air

What is the average temperature of Neptune?

• 0 degrees Celsius
• Negative 214 degrees Celsius
• 25 degrees Celsius
• 100 degrees Celsius

How long does it take Jupiter to orbit the sun once?

• 1 year
• 12 years
• 24 years
• 50 years

What is unique about the planet Uranus?

• It has rings
• It spins on its side
• It has no moons
• It is the closest to the sun

Asteroids are ...

• Made of gas
• Have solid rocky surfaces
• Have many moons
• Rocks that orbit the sun