Sea Floor Spreading

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bjansen

Developed for 8th grade students. Describes the evidence Alfred Wegener used in his theory.

Technologie Industrie automobile

What caused Wegener’s theory to be accepted? ,[object Object],[object Object],[object Object],[object Object]

There is a chain of submerged mountains running through the center of the Atlantic Ocean. ,[object Object],[object Object],[object Object]

The Earth’s longest mountain range is underwater ,[object Object],[object Object]

Mid Ocean Ridges are where sea floor spreading occurs. ,[object Object],[object Object]

Example of sea floor spreading ,[object Object]

Evidence of sea-floor spreading ,[object Object]

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The crust increases in age the farther it moves away from the mid-ocean ridge. ,[object Object],[object Object],[object Object]

Why doesn’t the Earth get bigger? ,[object Object]

The theory of Plate Tectonics ,[object Object],[object Object]

Convection ,[object Object],[object Object],[object Object]

Ridge Push ,[object Object],[object Object]

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