Weather fronts

When masses of cold and warm air meet, weather fronts develop.

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Types of soil (soil profiles)

This animation demonstrates different types of soil.

Plate tectonics

Plate tectonics is a theory dealing with the movement of plates.


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Karst region (intermediate)

Karst formations include dolines and dripstones.

Mediterranean climate

It is characterised by dry, hot summers and mild winters.

Tectonic plates

Tectonic plates can move in relation to each other.

The World of the seas

Seas and oceans cover almost three-quarters of the Earth’s surface. 97.5% of the total...

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