Rivers and landforms

On a geological time scale lakes are short-lived.

A hydrothermal vent is a fissure in the planet's surface from which geothermally heated...

Cyclones are large areas of circulating air with clouds and precipitation being formed in...

Rocks are a composed of minerals. These minerals can often be found in their pure forms.

Atmospherical nitrogen is bound by bacteria and used by living organisms in the form of...

Physical properties, as well as the flora and fauna of the ocean change with depth.

Bauxite is a raw material in aluminium production. Watch this video to learn how the well-known...

Short-lived but extremely powerful tornadoes can cause a great deal of damage.