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