Eratosthenes

The circumference of the Earth has already been calculated in ancient Egypt. The calculations turned out to be rather accurate, considering the conditions of the time.

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Afrika - The geological anatomy of a continent

Az afrikai kontinens földtani formálódása és földrajzi felosztása.

Types of lakes

Still waters take various forms on the planet. Let’s take a look at how we can group them.

How do seas shape the Earth's surface?

Seawater, as an external force, plays an important role in shaping coastlines.

The moon

What secrets does the Moon have? Who were the first men on the Moon? You’ll find out everything...

THE PERMAFROST

A tartósan fagyott altalaj határa – a globális felmelegedés hatására – egyre jobban húzodik vissza.

The giants of the Solar System

This lesson introduces you to the outer planets of the Solar System, that is the giant...

From the Sahara to Amazonia

A szaharai porral érkező tápanyagok nélkülözhetetlenek az Amazonas növényvilága számára.

The atmosphere

The atmosphere surrounds us everywhere on this planet. We take its presence so much for granted...

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