Mars

A picture of Mars from space.

Discovered: It was discovered in ancient times.

Named after: It s named after the Roman god Mars god of war.

Temperature: In winter it can get 191 degrees below 0.

In the summer it can get 24 degrees below 0.

Diameter: 6,792km (4,196 miles)

Made of: It is made of iron and rock.

Can people live on Mars?: Scientists say in the future we will be able to live on Mars. But it won't be easy. Mars has this red dust so it won't be easy to breath and to see.

Earth

A picture of Earth from space

Named after: It is not named after anything. The word comes from Old Saxon word ertha, the Dutch word aerde, and the German word erda.

Temperature: The coldest temperature on Earth is 14 C.
The hotest temperature on Earth is 70.7 C (159 F).

Diameter: 7,926.41 miles (12,756.32 km)


Made of: Rock and lava. It has three parts: Crust, Mantle, Core