Plate Motions Review

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What is a convergent plate boundary?

Back

A convergent plate boundary is where two tectonic plates move toward each other, often causing one plate to be forced below the other, leading to earthquakes and volcanic activity.

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Front

What happens at a divergent plate boundary?

Back

At a divergent plate boundary, two tectonic plates move away from each other, allowing magma to rise and create new crust, often forming mid-ocean ridges.

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Front

What is a transform plate boundary?

Back

A transform plate boundary is where two tectonic plates slide past each other horizontally, which can cause earthquakes.

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Front

What is the mid-ocean ridge?

Back

The mid-ocean ridge is an underwater mountain range formed by the upwelling of magma at divergent plate boundaries.

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How do tectonic plates move?

Back

Tectonic plates move due to convection currents in the Earth's mantle, which cause them to drift slowly over time.

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What is subduction?

Back

Subduction is the process where one tectonic plate is forced under another plate, often leading to volcanic activity and the formation of mountain ranges.

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Front

What evidence supports the theory of plate tectonics?

Back

Evidence includes the fit of continental coastlines, fossil distribution, and the presence of similar rock formations on different continents.

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NGSS.HS-ESS1-5

Front

What are tectonic plates?

Back

Tectonic plates are large sections of the Earth's lithosphere that move and interact with each other, causing geological activity.

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What is continental drift?

Back

Continental drift is the theory that continents have moved over geological time and were once joined together in a supercontinent.

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Front

What role do earthquakes play in plate tectonics?

Back

Earthquakes occur when stress builds up at plate boundaries and is released, indicating the movement and interaction of tectonic plates.

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NGSS.HS-ESS1-5

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