Comparing Sizes of Planets

Planets 1

100

• Which planet is the largest planet in the Solar System?

Jupiter

200

• Which planet is larger than Mercury but smaller than Earth?

Mars

300

• Which planet is larger, Uranus or Neptune?

Uranus

400

• Which planet is larger, Saturn or Jupiter?

Jupiter

500

• If Jupiter disappeared from the Solar System, which planet would become the largest?

Saturn

Planets 2

100

• Why are the outer planets like Jupiter and Saturn much larger than inner planets like Mercury and Mars?

Outer planets are gas giants with a lot of gas and ice; inner planets are rocky and could not accumulate as much mass.

200

• Which planet is the smallest planet in the Solar System?

Mercury

300

• Arrange from largest to smallest: Jupiter, Saturn, Uranus

Jupiter, Saturn, Uranus

400

• If Earth were the size of a 1 cm marble, how big would Jupiter be?

About 11 cm (since Jupiter is ~11 times the diameter of Earth)

500

• Which planet is bigger than Earth but smaller than Saturn?

Uranus