Planet Quiz

Almost Earth’s twin in size and mass, this planet has very thick atmosphere.

• Venus
• Mars
• Mercury
• Neptune

The surface of this planet appears red due to rusting iron in the rocks.

• Mercury
• Mars
• Pluto
• Venus

Some scientists believe that this dwarf planet is actually a very large comet caught in a permanent orbit.

• Eris
• Pluto
• Mars
• Neptune

This is the largest planet in the solar system.

• Saturn
• Jupiter
• Uranus
• Venus

Tags

NGSS.MS-ESS1-3

This is the smallest planet in the solar system

• Mercury
• Venus
• Earth
• Mars

Tags

NGSS.MS-ESS1-3

Only planet known to have life

• Earth
• Mars
• Venus
• Mercury

Tags

NGSS.MS-LS1-1

NGSS.MS-LS2-3

The outer planets have solid, rocky surfaces.

• True

• False

The inner planets consist of Mercury, Venus, Earth, and Mars.

• True

• False

Tags

NGSS.MS-ESS1-3

The inner planets are known as “gas giants” and the outer planets are known as “terrestrial planets.”

• True

• False

The outer planets are larger in size than the inner planets.

• True

• False

Tags

NGSS.MS-ESS1-3