Solar System Quiz

What is at the center of the solar system?

• The Moon

• Earth

• The Sun

• Mars

How many planets are in our solar system?

• 5

• 8

• 12

• 9

What causes auroras?

• Solar wind

• The Sun

• Comets

• The Moon

Where are most asteroids found?

• Between Mars and Jupiter

• Between Earth and Mars

• Beyond Neptune

• Inside the Sun

What are comets mostly made of?

• Rock

• Liquid water

• Dirt and ice

• Gas

What is the Kuiper Belt?

• A star

• A planet

• A ring of asteroids

• A ring of icy objects

How old is the solar system?

• 4.7 billion years

• 1 million years

• 100 million years

• 10 billion years

What was the first human-made object to orbit Earth?

• Apollo 11

• Sputnik 1

• Voyager 1

• Hubble Space Telescope

What are extrasolar planets?

• Comets

• Planets outside our solar system

• Moons of Jupiter

• Asteroids

What did people once think everything in the solar system orbited around?

• The Moon

• Earth

• The Sun

• Mars