An earthquake is one of the most devastating natural phenomena.
The Atacama Desert is the highest-elevation and dryest desert on Earth.
Short-lived but extremely powerful tornadoes can cause a great deal of damage.
Icebergs are blocks of frozen freshwater floating in the sea.
This lesson introduces you to the world of minerals.
This lesson presents deserts and their flora and fauna.
The greater the discharge and speed of the water, the stronger its surface-shaping force.
A video on the Amazon river and its drainage basin.
Tropical rainforests play an important role in regulating the Earth climate.