Social Science 5º. Unit 1- Earth and the universe

The origin of the universe

Formation of the Solar System

............................EARTH´S MOVEMENTS............................

...............................The Earth and it's parts.............................

The atmosphere is the layer of gases that surrounds our planet. It has got 5 different parts: troposphere, stratosphere, mezosphere, thermosphere and exosphere.

The hydrosphere is all the water on our planet. Continetal waters include lakes and rivers (fresh water) while oceanic waters include the oceans and the seas.

The geosphere is made up of all the rocks and minerals inside our planet. It has got three parts: the crust, the mantle and the core.

The biosphere includes all the living things that live on the Earth.