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volcanos
science 7th
| Question | Answer |
|---|---|
| Pyroclastic Flow | the expulsion of ash,cinder,bombs and gas |
| Hot springs | an area where magma from th edeep within the mantle melts through the crust above |
| Element | a substnce in wchich all atoms are the same and cannot be broken downinto another substance |
| Cinder cone volcano | a steep cone shaped hill or small mountain made of volcanic ash, cinders, and bombs |
| Composite volcano | a tall cone shaped mountainin wich layers of lava alternatewith layers of ash and other volcanic materials |
| Shield volcano | a wide gently sloping mountainmade of layers of lava and formed by quiet euptions |
| Dike | a slbe of volcanic rock formed when magma forces itself across rock layers |
| Batholith | a amss of rock formed when a large body of magma cools inside the crusyt |
| Sill | a slab of volcanic rock formed when magma squezzes between layers of rock |
| Pipe | a long tube through wich magma moves from the magma chamber to the earth's surface |
| Magma chamber | the pocket beneth the volcan where the magma collects |
| Dorment | a volcan is not currently active but can become active in the future |
| Active | when a volcan is shooting ash and lava at any time now |
| Extinct | a volcano that is no longer active and unlikey to erupt again |
| Geyser | a fountain of wter and steam taht builds up pressuer underground and erupts at a regular intervals |
| Calder | th large hole at the top of a volcan formed when the roof of a volcan's magma chamber collapes |
| Lava plateau | some eruption of lava form high level areas |
| Ring of fire | a major belt of volcanos that rims the picific ocean |
| Magma | the molten mixture of rock forming substance, gases, and water from the mantle |
| Lava | liqud magma that reaches the suface |
| Viscosity | a liquid restance to flowing |
| Silica | a material found in magma that is formed from the elemant oxygen and silicon |
| Pahoehoe | a hot fast moving type of lava |
| aa | a slow moving type of lava |
| Volcanic ash | ash from a volcano |
| Cinder | small dust particles |
| Bombs | large dust particals the size of cars |
| Vent | the oping throug wich moltenrock and gas leave a volcano |
| Volcano | a weak spot in te earth's crust where motlen lave has com to the surface |
| Crater | a bowl shaped area that formes around a volcano's central opening |
Created by:
Halloween29
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