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Dynamic Earth
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How do we know that the continents were once connected?
Fossils, soils, rock types, etc.
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Which layer of the Earth is the thinnest?
The Crust
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Which scientist presented the theory of Continental Drift?
Alfred Wegener
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What is the name for the tectonic plates that have lots of water on them?
Oceanic Plates
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What is the name for the tectonic plates that have lots of land on them?
Continental Plates
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Which layer of the Earth contains molten and semi-molten rock?
The Mantle
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What was the name of the supercontinent?
Pangaea
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How hot is the Inner Core of the Earth?
6000 degrees centigrade
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What is the name of the theory that argues that the continents are moving?
Continental Drift
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What is the name for the melted rock found within the Earth's mantle?
Magma
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Which layer of the Earth consists of liquid nickel and iron?
The Outer Core
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What layer is this?
Inner Core
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What is the name of the currents that cause the plates to move?
Convection Currents
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What layer is this?
Crust
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What layer is this?
Mantle
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Describe how Convection Currents work
Hot magma rises, nears the surface and cools, falls back down, creates a circular motion
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Name the four layers of the Earth
Crust, Mantle, Inner Core, Outer Core
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Which layer of the Earth is the hottest?
The Inner Core
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What is the name for the place where two plates meet?
Plate boundary
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What layer is this?
Outer Core
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