Plate Tectonics

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What is the Theory of Continental Drift?

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A hypothesis proposed by Alfred Wegener that suggests continents have moved over geological time and were once joined together in a single landmass called Pangaea.

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NGSS.HS-ESS1-5

NGSS.HS-ESS1-6

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What are the three main types of plate boundaries?

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Divergent, Convergent, and Transform boundaries.

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NGSS.MS-ESS2-3

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What occurs at a divergent boundary?

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New crust is created as tectonic plates move apart, often resulting in sea-floor spreading.

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NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

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What is a convergent boundary?

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A type of plate boundary where two tectonic plates collide, leading to the formation of mountains, trenches, or volcanic activity.

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NGSS.MS-ESS2-3

Front

What is a transform boundary?

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A type of plate boundary where two tectonic plates slide past each other, often causing earthquakes.

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NGSS.MS-ESS2-3

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What is sea-floor spreading?

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The process by which new oceanic crust is formed at a divergent boundary as magma rises to the surface.

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NGSS.MS-ESS2-2

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What geological features are commonly associated with convergent boundaries?

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Mountain ranges, deep ocean trenches, and volcanic arcs.

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NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

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What natural disaster is most commonly associated with transform boundaries?

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Earthquakes.

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NGSS.MS-ESS3-2

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What happens when tectonic plates collide?

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They can create mountain ranges, cause earthquakes, or form volcanic activity.

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NGSS.MS-ESS2-2

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What is the role of tectonic plates in the Earth's structure?

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Tectonic plates make up the Earth's lithosphere and float on the semi-fluid asthenosphere, causing geological activity.

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NGSS.MS-ESS2-1