The Jovian planets

The four outer planets (Jupiter, Saturn, Neptune and Uranus) do not have solid surfaces, thus they are called gas giants.

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Seafloor map

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

The water cycle (intermediate)

Water on Earth is in a continuous state of change. The water cycle includes processes...

Folding (intermediate)

Lateral compressive forces cause rocks to form folds. This is how fold mountains are...

Weather and climate

Climate is the typical weather of a certain region that changes practically only on a geological...

The Tundra: a green-edged icy wasteland

Is the tundra region as cold and deserted as many people think?

Monsoon wind system

In summer, monsoon winds bring heavy rainfall from the sea to the mainland.


A geyser is a spring characterised by intermittent discharge of water and steam.


People have always preferred to settle near rivers. What are the advantages and disadvantages of...

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