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Continental Drift

TermDefinition
Alfred Wegener The man who investigated continental drift after finding different evidence.
continental drift The hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present locations.
fossil A trace of an ancient organism that has been preserved in rock.
Pangaea A supercontinent containing all of Earth's land that existed about 225 million years ago.
Evidence gathered to support Continental Drift Theory landforms, fossil, continental fit and glacial
Landform evidence mountain ranges, rivers or the same rock type line up with others on another continent separated by an ocean
Fossils evidence fossils found in places now separated by oceans
Wegener Theory Rejected He could not provide a satisfactory explanation for the force that moves the continents.
Glacial Evidence Scratches and gouges from glaciers lined up on boundaries of continents; evidence that the Tropics were once covered in glaciers
Continental Fit Evidence The continents, particularly South America and Africa, fit together like puzzle pieces.
Striations Long parallel scars in rocks carved by rock fragments being dragged across them by a glacier.
convection or convection currents The force that moves the continents where warm rock rises and cold rock sinks in the mantle.
Created by: user-1748583
 

 



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