Water covers most of the world´s surface.
It assembles 80 % of the terrestrial mass.
The mantle is the middle layer.
It is all water on the Earth.
The core is the inner layer.
It is compound by Iron (35%), Oxygen (25%) and Silicon (18%).
It is the air that plants and animals breathe to survive
It is the solid part of the Earth.
it absorbs the heat from the Sun and keeps it inside the atmosphere helping the Earth to stay warm
The lakes are masses of fresh water which are accumulated in the land.
The crust is the outside layer.
It is made up mostly of nitrogen (78%) and oxygen (21%).
The clouds are accumulations of small drops that are situated in the troposphere.
The rivers are continuous strands of fresh water.
The oceans are big masses of salt water.
It is the mixture of gases that surrounds the Earth.
It is characterized to have the highest temperatures, pressure, density, volume and thickness.
It is divided up into 5 major layers: exosphere, thermosphere, mesosphere, troposphere and stratosphere
The ground water is the sum of the water that is below the Earth´s surface.
