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volcaneos
Term | Definition |
---|---|
Parts of a volcano | Crater,Lava flow,ash laye rand the Vent |
layers of a volcano | The Crust and the Mantle |
3 types of a volcano | Active,Dormant and Extinct |
Active volcanoes | The volcano is still erupting at regular intervals |
Examle of an Active volcano | Mount Vesuvius |
Dormant volcanoes | The volcano has been queit for a hundred years but may erupt again |
Example of a Dormant volcano | Mount St Helens |
Extinct volcanoes | The volcano has not erupted in recorded times |
Volcanic mountains | Are formed when molten magma emerges or erupts through a hole in the crust called the vent |
Magma | The molten or semi-molten material that makes up the Earth's Mantle |
Lava | Molten Magma when it reaches Earth's surface |
Volcanic activity can result in: | Mid-ocean ridges and islands&Volcanic cones |
The Vent | Magma reaches the surface through the vent |
Lava | When magma reaches the surface it is knownas LAVA!! |
Layers | Layers of these materials builds up to make a cone shaped mountain |