sort out the cards to create a square by matching processes of the rock cycle to their description
TRANSCRIPT
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Sort out the cards to create a square by matching processes of
the rock cycle to their description.
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Learning goals:
• Knowledge:• Be able to explain why tectonic
plates move and describe some evidence for this.
• Skill:• Problem solving and fact-finding!
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Tectonic plates are large pieces of the Earth’s crust that
move a few cms every year
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Why do tectonic plates move?
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Plates have boundaries with other plates
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• Correctly fill in the table below each picture of a plate boundary to describe the properties of each boundary.
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It was once thought that mountains formed because
the Earth was shrinking
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We now know differently!
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Alfred Wegener
was a German scientist who proposed the theory of continental drift in 1912. He hypothesized that the continents were slowly drifting around the Earth. However, Wegener was unable to explain why , which meant that his hypothesis was not accepted until the 1950s, when numerous discoveries provided evidence of continental drift.
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What was the evidence?
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Pangaea – a supercontinent
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Similar fossils have been found in South America & South
Africa
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Similar rock layers been found in South America & South
Africa
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• Create Pangaea from your tectonic plate jigsaw. Around your completed jigsaw describe the evidence that continents were once joined.
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Wegener’s theory wasn’t accepted for many years!
Bad times!
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You are a fellow scientist who thinks Wegener is a numpty. Write a letter to a friend outlining why
you think Wegener theory of continental drift is complete
hogwash.