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On a geological time scale lakes are short-lived.
Bauxite is a raw material in aluminium production. Watch this video to learn how the well-known...
Soil is the loose, uppermost, fertile layer of the Earth’s crust.
The weather can be forecast with different meteorological instruments.
Rocks are a composed of minerals. These minerals can often be found in their pure forms.
The ozone layer filters the Sun´s harmful UV radiation, therefore it is indispensable for life...
Developed nearly 500 years ago, it is a variant of the Julian calendar. Today it is the most...
An earthquake is one of the most devastating natural phenomena.