Jimmy Nguyen 7Y
What is a volcano?
The word 'volcano' comes from the ancient Roman god named 'Vulcan' which means fire. The study of volcanoes is called vulcanology.
The Formation of Volcanoes
Different types of volcanoes
•Composite volcanoes(or Strato volcanoes)
Composite volcanoes are built up of many layers of lava, pumice, tephra, and volcanic ash. The lava from composite volcanoes typically cool down much faster than lava from say a Shield or Dome volcano. A Composite volcano has also been secluded on an isolated massif in Mars. They are the most common volcano on Earth.
Shield volcanoes are completely made up of fluid magma. It has been deemed reminiscent to a warrior's shield, hence the name Shield volcano. The shape of this volcano is due to the low-viscosity magma.
Dome volcanoes have a circular molded shaped protrusion near the peak of the volcano. Because of this shape, lava that flow out from the mantle doesn't usually go very far.