The Pompeii before time
There is a little village in Northern Hungary in Central Europe that is a hiding place for a unique treasure.
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The water cycle (intermediate)
Water on Earth is in a continuous state of change. The water cycle includes processes...
The water cycle (basic)
Water on Earth is in a continuous state of change. The water cycle includes processes...
Volcanic activity
The area surrounding an inactive or extinct volcano is not necessarily calm. Let’s see the...
The terrestrial planets
Mercury, Venus, Earth and Mars may have they formed in much the same way, but only the Earth is...
How do seas shape the Earth's surface?
Seawater, as an external force, plays an important role in shaping coastlines.