Solar System Review

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 small and rocky.

Front

What are the outer planets primarily made of?

Back

The outer planets are mostly made of gas.

Front

What force causes objects to fall towards the Earth?

Back

The gravitational pull of the Earth causes objects to fall downward.

Front

What is Pluto classified as?

Back

Pluto is classified as a dwarf planet.

Front

What is a star?

Back

A star is a ball of gas in space that produces its own light and heat.

Front

Name the four inner planets.

Back

Mercury, Venus, Earth, Mars.

Front

What are the outer planets?

Back

The outer planets are Jupiter, Saturn, Uranus, and Neptune. They are large and mostly made of gas.

Front

What is the main difference between inner and outer planets?

Back

Inner planets are small and rocky, while outer planets are large and gaseous.

Front

What is the largest planet in our solar system?

Back

Jupiter is the largest planet in our solar system.

Front

What is the smallest planet in our solar system?

Back

Mercury is the smallest planet in our solar system.