The Outer Planets

_____ giants are planets that have deep, massive atmospheres rather than hard and rocky surfaces.

• Gas
• Weather
• Rock

What is the largest planet in our solar system?

• Jupiter
• Saturn
• Uranus
• Neptune

How many missions has NASA sent to Jupiter?

• 4
• 5
• 6
• 7

Which planet has the largest rings?

• Jupiter
• Saturn
• Uranus
• Neptune

Which planet was discovered by astronomer William Herschel in 1781?

• Jupiter
• Saturn
• Uranus
• Neptune

Unlike most planets, _____ is tipped over on its side.

• Jupiter
• Saturn
• Uranus
• Neptune

Neptune was discovered in ____.

• 1486
• 1846
• 1648
• 1864

What is Pluto now classified as?

• a star
• a minor planet
• dwarf planet

Pluto is less than half the size of _____.

• Jupiter
• Mercury
• Uranus
• Neptune

Which of the following was previously classified as an asteroid?

• Ceres
• Eris
• Pluto
• Saturn