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14 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? |
Little movements in the earths mantle |
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What is a magma chamber? |
Where the magma is kept within the mantle |
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What are vents? |
Vents are holes or pathways that release gases |
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What is a caldera? |
Crater which is left after a super volcano eruption |
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What are pyroclastic flows? |
Poisonous gas and ash that appear after eruptions |
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What is an epicentre? |
Point above the focus. The point where the earthquake hits |
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What is the focus? |
Where the earthquake starts |
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What are shockwaves? |
The vibrations released after an earthquake hits |
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What is the Richter scale? |
Measures the magnitude of an earthquake using a seismometer |
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What is the mercalli scale? |
Measures the effects of an earthquake using an eye witness |
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What are the characteristics of an supervolcano? |
It has: - Can only be seen from outer space -low and flat -has a caldera -pyroclastic flow |
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Describe a shield volcano? |
H |
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What is a destructive plate margin? |
I |
