Solar eclipse

When the Sun, Earth, and the Moon are arranged in a straight line, the Moon can partially or completely obscure the Sun.

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Formation of the Earth and Moon

This animation demonstrates how the Earth and the Moon were formed.

The loneliest place on Earth

There is a spot in the open ocean that is 2,688 km away from the nearest land.

Change of seasons (intermediate)

Due to the Earth´s tilted axis, the angle of the Sun's rays at given latitudes...

Sights of the world

A game about sights around the world.


Comets are spectacular celestial bodies orbiting the Sun.

The countries of Africa

Learning about the geographic location, capitals and flags of African countries through...

The life-cycle of the Solar System

The formation of the Sun and the planets started with the contraction of a dust cloud...

Continental drift on a geological timescale

The Earth's continents have been in constant motion during the history of the planet.

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