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The Structure of Earth
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Crust
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Mantle
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Outer Core
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Inner Core
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Plates of the lithosphere
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Lithosphere
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Asthenosphere
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Rocks and Minerals
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Igneous rocks
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Intrusive
Extrusive
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Sedimentary rock
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Compaction
Cementation
Fossils
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Metamorphic rock
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6 characteristics to identifying rocks and minerals
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Crystal structure
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Hardness
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Lustre
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Colour
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Streak
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Cleavage and Fracture
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The Rock Cycle
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Chemical weathering
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Mechanical weathering
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The Theory of Plate Tectonics
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Convergent Boundary
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Oceanic-Continental Convergence
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Oceanic-Oceanic Convergence
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Continental-Continental Convergence
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Divergent Boundary
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Transform Boundary
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How do we measure plate movement?
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Extrusive
Extrusive rock is rock that is formed by lava after it is cooled.
Extrusive rock is formed when lava cools outside the Earth.
Rocks that are formed outside of the Earth are called extrusive rocks.