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In the past, a number of geologists tried to explain why the outlines of continents seem to fit...
This animation demonstrates different types of volcanic eruptions
Water covers about 71% of the Earth’s surface. But why are there two types of water on Earth,...
Above a certain altitude snow does not melt, not even in summer.
Lateral compressive forces cause rocks to form folds. This is how fold mountains are formed.
Lightning is a sudden electrostatic discharge accompanied by a sound known as thunder.
Rivers play an important role in shaping the Earth's surface: they cause erosion as well...
Karst formations include dolines and dripstones.