What do you know about Earth?

Geography and Earth: Earth, our planet, is the third farthest from the sun, and orbits it in 365.24 days. The Earth rotates on its axis...

HomeTell Me Why7/27/2011[ Pomona, Ca., U.S.A. ] Tell - A - Friend

Earth, our planet, is the third farthest from the sun, and orbits it in 365.24 days.

The Earth rotates on its axis in about 24 hours. The earth is made up of three main parts: the core, the mantle and the crust.

The core is mainly iron and nickel, and it is the metal of the core which gives the earth its magnetic field. The crust is the surface of earth.

It rests on a layer called the mantle. The crust and mantle move very slowly, and their movements has created rift valleys and mountains.

Oceans cover about 60 per cent of the crust and the continents cover the rest. The Earth has an atmosphere mainly of nitrogen and oxygen.

It is the only planet in the solar system with plenty of liquid water and a lot of oxygen in the atmosphere. The Earth has one satellite, the Moon.

Earth, Planet in Solar System, Rotates on Axis, Earths Parts, Core, Mantle and Crust, Surface of Earth, Earths Atmosphere