Mars
Mars is nearly 7,000 kilometres (km) wide, just over half the width of the Earth. Its volume is about 15% of the Earth.
Mars is the fourth planet from the Sun. It is called a terrestrial planet because it has a rocky surface like the Earth.
It is thought that Mars has an iron core and a crust made of silicate.
Tuesday, February 6, 2007
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment