Chemistry-the shifting continents

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explain the theory of continental drift
Continental drift is the movement of the Earth's continents relative to each other by appearing to drift across the ocean bed.
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What evidence is the theory of continental drift based on?
Alfred wegener (in 1915) suggested the continents were once joined+had moved apart to their present positions,based this on the close fit of the coastlines+similar patterns of rocks and fossils of continents separated by oceans,unable to explain-move
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What is the earths surface(lithosphere)composed of?
large pieces called plates,which are moving very slowly.This movement drives the rock cycle
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Where can igneous rocks be formed?
where these tectonics plates move apart and magma rises to fill the gap
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How can rocks be deformed and/or recycled
where tectonic plates move toward each other driving down the denser plate. This plate may melt to form magma that form igneous rock on cooling
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Card 2

Front

What evidence is the theory of continental drift based on?

Back

Alfred wegener (in 1915) suggested the continents were once joined+had moved apart to their present positions,based this on the close fit of the coastlines+similar patterns of rocks and fossils of continents separated by oceans,unable to explain-move

Card 3

Front

What is the earths surface(lithosphere)composed of?

Back

Preview of the front of card 3

Card 4

Front

Where can igneous rocks be formed?

Back

Preview of the front of card 4

Card 5

Front

How can rocks be deformed and/or recycled

Back

Preview of the front of card 5

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