Nitrogen cycle

Atmospherical nitrogen is bound by bacteria and used by living organisms in the form of various compounds.

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El Niño

Az El Niño jelensége szinte az egész Föld éghajlatára hatással van.

Mountain climate zones

The decisive factor that determines the climate zones of mountains is the altitude above sea level.

How does soil form?

This lesson presents soil formation, the components of soil, and soil protection.

Weather project

You can become meteorologists through fun group tasks.

Glacier (basic)

A glacier is a large body of ice that forms from snow, and is in constant, slow motion.

Deep-sea hydrothermal vents

A hydrothermal vent is a fissure in the planet's surface through which geothermally...

The development of lakes

Standing bodies of water can form in depressions on the surface by both endogenic and...

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