The soil

Soil is the loose, uppermost, fertile layer of the Earth’s crust.

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Seafloor map

The boundaries of tectonic plates can be seen on the seafloor.

Ocean currents

The Great ocean conveyor is a planet-wide system of ocean currents, which has a great...

The moon

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

The desert

One third of the continents is covered with desert. Today, desertification is a growing problem.

Polluting natural waters

Water is one of our key natural resources; we must protect it vigorously.

The terrestrial planets

Mercury, Venus, Earth and Mars may have they formed in much the same way, but only the Earth is...

The weather forecast

The weather can be forecast with different meteorological instruments.

Sedimentary rock

Did you know that about 75% of the land on our planet is covered with sedimentary rock?

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