Inner and outer planets

Front

What are the inner planets?

Back

The inner planets are the four planets closest to the Sun: Mercury, Venus, Earth, and Mars. They are smaller and rocky.

Front

What are the outer planets?

Back

The outer planets are the four planets farthest from the Sun: Jupiter, Saturn, Uranus, and Neptune. They are larger and mostly gas.

Front

True or False: The inner planets are smaller than the outer planets.

Back

True

Front

Which planets have thick atmospheres?

Back

The outer planets have thick atmospheres.

Front

What is a key characteristic of all inner planets?

Back

All inner planets are rocky.

Front

What is a key characteristic of all outer planets?

Back

All outer planets have many moons.

Front

Do the inner planets have rings?

Back

No, the inner planets do not have rings.

Front

Do the outer planets have rings?

Back

Yes, the outer planets have rings.

Front

Which planets are known as gas giants?

Back

Jupiter and Saturn are known as gas giants.

Front

Which planets are known as ice giants?

Back

Uranus and Neptune are known as ice giants.