Inner Planets Quiz

Which of the following planets is the smallest?

• Earth

• Mars

• Mercury

• Venus

What are the inner planets composed of?

• gases and ice

• rock and ice

• gases and rock

• rock

What is another name for the inner planets?

• extraterrestrial planets

• terrestrial planets

• gas giants

• gas dwarfs

Which planet has no atmosphere?

• Earth

• Venus

• Mercury

• Mars

Which planet has a thick atmosphere and is the hottest planet?

• Mercury

• Venus

• Earth

• Mars

What is a common characteristic of the inner planets?

• Large

• Gaseous

• Rings

• Rocky Surface

Which planet is covered in water?

• Mercury

• Venus

• Earth

• Mars

Which is considered to be earth's twin because it is close in size?

• Uranus

• Jupiter

• Mars

• Venus

Which planet is the brightest object in the sky after the Sun and Moon?

• Earth

• Venus

• Neptune

• Jupiter

Which planet is known as Earth's twin because of its characteristics?

• Mars

• Jupiter

• Venus

• Saturn