Greenhouse effect

Human activity increases the greenhouse effect and leads to global warming.

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Milky Way

The diameter of our galaxy is about 100,000 light years; it contains more than 100...

Types of soil (soil profiles)

This animation demonstrates different types of soil.

On the track of the rain - Savannahs

The flora and fauna of the savannahs adapt to the climate.

Folding (advanced)

Lateral compressive forces cause rocks to form folds. This is how fold mountains are formed.

Ozone layer

The ozone layer filters the Sun´s harmful UV radiation, therefore it is indispensable for...

The Baikal fault line

The deepest lake in Earth was formed in a rift valley created by the Baikal Rift Zone.

Join the caravan!

This lesson presents deserts and their flora and fauna.

The Earth’s magnetic field

The Earth’s magnetic North and South poles are located near the geographic North and...

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