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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 |