Unit 4: Plate Tectonics

The Theory of Continental Drift was proposed by

• Harry Hess

• Alfred Wegener

• J Tuzo Wilson

• Mr. Beachy

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All continents were one joined together in a single landmass and have drifted apart.

• Theory of Plate Tectonics

• Theory of Sea-Floor Spreading

• Theory of Continental Drift

• Theory of Dark Continents

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What is Pangaea?

• A super continent that existed millions of years ago.

• A super cushion that existed millions of years ago.

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Evidence to support the Theory of Continental Drift came from

• Fossils, landforms, and climate change

• Fossils, rocks, and plants

• Climate change, fossils, and Legos

• landforms, forests, and climate change

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The Theory of Continental Drift led to the modern theory of

• Continental Drift

• Plate Tectonics

• Sea-Floor Spreading

• Heat Transfer

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Which of the Earth’s layers has the highest temperature?

• Crust

• Mantle

• Outer Core

• Inner Core

The transfer of heat between solid objects that are touching is called?

• conduction

• convection

• radiation

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Plate boundaries that move apart are called

• convergent boundaries

• divergent boundaries

• transform boundaries

• strike-slip boundaries

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Earth's plates move because of ___ ___ in the mantle.

• convection currents

• radiation

• conduction

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Plate boundaries that move past one another horizontally in opposite directions are called?

• divergent boundaries

• transform boundaries

• convergent boundaries

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