Volcanoes are classified as dormant, active, and extinct. One of the most active volcanoes today is in Mauna Loa, Hawaii. Is it magma or lava? Well, it’s both! Magma is the liquid rock inside the volcano, and once it spills out of it, it is called lava. Lava will burn everything...
How do volcanoes become dormant? Is magma hotter than lava? How are caldera volcanoes formed? How does a volcano form? How does magma from a magma chamber reach the surface? What happens to lava after it erupts from a volcano? How does subduction create volcanoes?
The numerous volcanoes in Iceland are simplified into volcanic systems. One system features a central volcano (after which the system is typically named) with fissure swarms that spread away from it and consist of smaller volcanoes. While most of the volcanic systems are dormant, about 30 to 40...
Plate tectonics are driven by pressure. The type and direction of pressure determines the type of tectonic boundary — the form of activity where plates meet or part. Boundaries are broadly classified as divergent, convergent or transform. Most plates encompass more than one type of boundary becaus...