The biggest known volcano in our solar system is on Mars. It is called Olympus Mons. The volcano on Mars is three times the height of Mount Everest and covers an area about the size of Arizona.
The deepest lake in North America is a volcanic crater filled with water. The crater was the result of a volcano collapsing inward after an eruption that occurred thousands of years ago.
Ash clouds and sulfur dioxide released into the air from volcanoes can cause temperatures to drop in different parts of the world.
Long ago, Iceland’s most famous volcano, Hekla, was believed to be a meeting place for witches.
Volcanic activity can bring valuable minerals up near the surface like gold, silver and copper.
Many diamonds have been brought up from great depths by volcanic eruptions and are mined from the necks of extinct volcanoes.
Many countries use volcanic steam from the ground to generate electricity.