Front

What is the smallest inner planet in our Solar System?

Back

Mercury is the smallest inner planet.

Front

What are the outer planets also known as?

Back

Gas giants because they consist mostly of gas.

Front

Which planet is most like Earth and why?

Back

Mars, because it has two small moons and shows evidence of water.

Front

What are the four planets closest to the Sun called?

Back

Inner Planets.

Front

Is the Sun the closest star to Earth?

Back

True.

Front

What are the main characteristics of gas giants?

Back

They are large planets that are mostly made of gas and have no solid surface.

Front

Name the four inner planets of our Solar System.

Back

Mercury, Venus, Earth, and Mars.

Front

What is a terrestrial planet?

Back

A terrestrial planet is a rocky planet that has a solid surface.

Front

What is the largest planet in our Solar System?

Back

Jupiter is the largest planet.

Front

What is the main component of the atmosphere of Venus?

Back

Carbon dioxide.