Volcanoes

Volcanoes

Volcanoes are openings in the Earth's surface where molten rock, ash, and gases erupt. This molten rock, called magma when it's inside the Earth, is called lava when it erupts. Volcanoes are usually found where tectonic plates are moving apart or colliding. The type of eruption depends...

A volcano is a vent in the Earth's surface where magma, lava, rock, ash, and gases escape from within the planet.

Volcanoes exist due to the movement of Earth's plates. They are most common along Earth’s tectonic plate boundaries, where plates collide or pull apart. However, volcanoes can also form in the middle of a plate, in areas called...