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Java Games: Flashcards, matching, concentration, and word search. |
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Plate Tectonics - section 4
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| A | B |
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| an undersea mountain chain where new ocean floor is produced | mid-ocean ridge |
| a device that determines the distance of an object under water by recording echoes of sound waves | sonar |
| the process by which molten material adds new oceanic crust | sea-floor spreading |
| a deep valley along the ocean floor beneath wich oceanic crust slowly sinks toward the mantle | deep-ocean trench |
| the process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary | subduction (zone) |
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