Solar System Project for History

How many planets in our Solar System are terrestrial?

• 4

• 5

• 2

• 3

How many planets in our Solar System are gas giants?

• 2

• 4

• 1

• 0

How many planets in our Solar System are ice giants?

• 2

• 1

• 0

• 3

How many planets did Galileo Galilei discover?

• 5

• 4

• 6

• 7

What tool did Galileo Galilei use to discover planets?

• A telescope

• Mathematics

• The naked eye

• An observatory

How was Neptune discovered as a planet?

• Observed through a telescope

• Mathematics

• An observatory

• The naked eye

How many planets in our Solar System have rings?

• 3

• 4

• 2

• 1

Who discovered Uranus?

• Galileo Galilei

• William Herschel

• John C. Adams

• Urbain Le Verrier

Which planet rotates on its side?

• Mercury

• Uranus

• Jupiter

• Venus

How many planets have shorter years than Earth?

• 2

• 3

• 1

• 0