Thursday 2/7/19 Notebook Entry: Think about last night’s reading assignment (pgs. 80-81). How might the discovery of mid-ocean ridges support Alfred Wegener’s.

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Presentation transcript:

Thursday 2/7/19 Notebook Entry: Think about last night’s reading assignment (pgs. 80-81). How might the discovery of mid-ocean ridges support Alfred Wegener’s hypothesis of continental drift? Example of mid-ocean ridge

5 minutes

T = Continental Drift Evidence Lines of Evidence 2-Column Notes T = Continental Drift Evidence Fossil evidence Fossils of the same plants and animals were found on South America, Africa, India, Antarctica & Australia. These plants and animals could not have traveled across the oceans.

T = Continental Drift Evidence There are matching folded mountains along the coast of ________ Matching folded rock must be formed at the same time & place. Landform Evidence

T = Continental Drift Evidence There are glacial deposits of rock and sediment on _____________. Some of the plant fossils do not match the current climate of the continent. Climate Evidence

Challenge to Wegener's Hypothesis Poor explanation for the force that pushes or pulls the continents and causes them to move.

What other evidence could support Wegener’s idea The ocean floor gives us many clues…how did we find these clues? Marie Tharp’s Maps