Plate Tectonics

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Continental drift

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the gradual movement of the continents across the earth's surface through geological time.

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Front 2

Plate tectonics

Back 2

a theory explaining the structure of the earth's crust and many associated phenomena as resulting from the interaction.

Hint 2

Front 3

Pangaea

Back 3

is a hypothetical supercontinent that included all current land masses, believed to have been in existence before

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Front 4

Lithospheric plates

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Lithospheric plates are regions of Earth's crust and upper mantle that are fractured into plates that move across a deeper plasticine .

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Front 5

Convection currents

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a current in a fluid that results from convection.

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Front 6

Divergent boundary

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is a linear feature that exists between two tectonic plates that are moving away from each other

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Front 7

Seafloor spreading

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is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge

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Front 8

Convergent boundary

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also known as a destructive plate boundary (because of subduction), is an actively deforming region where two (or more) tectonic plates

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Front 9

Subduction zones

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are sites of high rates of volcanism, earthquakes, and mountain building.

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Front 10

Trastion boundary

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also known as conservative plate boundary since these faults neither create nor destroy lithosphere,

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