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what are the three types of plate margins
destructive, constructive and conservative margins
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Describe a destructive margin
two plates moving towards eachother, where an oceanic meets a continental plate. the denser oceanic plate is forced down into the mantle and destroyed. often creates volcanoes and ocean trenches.
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Describe a constructive margin
where two plates are moving away from each other. magma rises from the matle to fill the gap and cools creating new crust
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Describe a conservative margin
two plates moving sideways past each other or moving in the same direction but at different speeds.
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what are the plates made of
contintenal and oceanic
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Describe a contintenal crust
it is thicker and less dense
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Describe a oceanic crust
it is thinner and more dense
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What do you call where the plates meet
boundaries or plate margins
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Other cards in this set

Card 2

Front

Describe a destructive margin

Back

two plates moving towards eachother, where an oceanic meets a continental plate. the denser oceanic plate is forced down into the mantle and destroyed. often creates volcanoes and ocean trenches.

Card 3

Front

Describe a constructive margin

Back

Preview of the front of card 3

Card 4

Front

Describe a conservative margin

Back

Preview of the front of card 4

Card 5

Front

what are the plates made of

Back

Preview of the front of card 5
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