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19 Cards in this Set
- Front
- Back
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What are the four parts of the earth? |
Inner core Outer core Mantle Crust |
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What are convection currents? |
Small movements in the earths mantle |
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What is the magma chamber? |
A storage place in the mantle containing lava and magma |
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What are vents? |
Holes or pathways in a volcano that release gases |
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What is a caldera? |
A hole that is left after a super volcano has erupted |
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What are pyroclastic flows? |
The poisonous gas and ashes released from a super volcano |
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What is the epicentre? |
The point where the earthquake hits the surface |
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What is the focus? |
To where the point the earthquake starts or begins |
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What are shock waves? |
Vibrations or waves of energy that are released after an earthquake hits |
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What is the Richter scale? |
Measures the magnitude of an earthquake using a seismometer from 1-10 |
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What is the mercalli scale? |
Measures the effects of an earthquake (eye witness) in 1-12 |
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What are the characteristics of a super volcano |
Has a caldera Has pyroclastic flow Low and flat Only seen from outer space |
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What is a composite volcano? |
Tall and steep Ashy and lava |
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What is a shield volcano? |
Only made of lava Low and flat |
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What is a dome |
Looks similar to composite but not as steep |
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What are the three plate margins |
Constructive Destructive Conservative |
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What are constructive plates |
Into each other >< |
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What is a destructive plate? |
Pull apart <> |
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What is a conservative plate? |
Move together < < |
