|Mercury •||Venus •||Earth •||Mars •||Jupiter •||Saturn •||Uranus •||Neptune|
The Earth is our planet. At the moment, it's the only planet with life because it has a dense atmosphere of nitrogen and oxygen. The predominant colour is the blue, because it is tree-quarters covered by oceans. It is believed to have formed about 4,600 millions years ago.
Description[edit | edit source]
The Earth is the third planet from the Sun in the Solar System. It is orbiting between Venus and Mars at an average distance of 149.6 millions km. The Earth also has one satellite, which is the Moon and has an equatorial diameter of 12,756 km across it.
The structure of the Earth[edit | edit source]
The inside of the Earth is separated in five layer:
- inner core, solid
- outer core, liquid
- mantle, viscous
- asthenosphere, the outer part of the Mantle
- crust, divided in two parts: oceanic and continental crust
The movements of the Earth[edit | edit source]
The Moon[edit | edit source]
The Earth has one satellite, the Moon.
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