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Continental Drift Continental Drift

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Page 1: Continental Drift. The continents are moving At one time all the continents were connected Pangaea

Continental Drift Continental Drift

Page 2: Continental Drift. The continents are moving At one time all the continents were connected Pangaea

Continental Drift Continental Drift • The continents are moving

• At one time all the continents were connected

• Pangaea

Page 3: Continental Drift. The continents are moving At one time all the continents were connected Pangaea

Continental DriftContinental Drift

Back

Page 4: Continental Drift. The continents are moving At one time all the continents were connected Pangaea

Continental DriftContinental Drift• 200 million years ago it

began to break apart

• About 2.5 cm/yr

• Became the 7 continents of today

Page 5: Continental Drift. The continents are moving At one time all the continents were connected Pangaea

Continental DriftContinental Drift• Alfred Wegener proposed this

idea in 1912• German scientist• Ideas were not accepted at first• Based his theory on 4 pieces of

evidence

Page 6: Continental Drift. The continents are moving At one time all the continents were connected Pangaea

Alfred Wegener

Page 7: Continental Drift. The continents are moving At one time all the continents were connected Pangaea

1. Continent Shape1. Continent Shape• He noticed many continents

seemed to fit together like a giant jigsaw puzzle

Pangaea

Page 8: Continental Drift. The continents are moving At one time all the continents were connected Pangaea

1. Continent Shape1. Continent Shape

Page 9: Continental Drift. The continents are moving At one time all the continents were connected Pangaea

2. Fossil Evidence2. Fossil Evidence• Similar animal and plant

fossils discovered in places far apart

• And in matching coastlines on different continents

Page 10: Continental Drift. The continents are moving At one time all the continents were connected Pangaea

2. Fossil Evidence2. Fossil Evidence

Page 11: Continental Drift. The continents are moving At one time all the continents were connected Pangaea

3. Rock Evidence 3. Rock Evidence • Age and kinds of rocks and

minerals along the edge of one coastline

• Are similar to those on another continent

Page 12: Continental Drift. The continents are moving At one time all the continents were connected Pangaea

4. Mountain Evidence 4. Mountain Evidence

• Some mountain ranges on different continents seem to match

• As well as glacier “scars” or marks

Page 13: Continental Drift. The continents are moving At one time all the continents were connected Pangaea

4. Mountain Evidence4. Mountain Evidence

Page 14: Continental Drift. The continents are moving At one time all the continents were connected Pangaea

4. Glacier Features Evidence

Page 15: Continental Drift. The continents are moving At one time all the continents were connected Pangaea

THE END

• Let’s take some notes on continental drift now!

http://images.clipartof.com/small/5798-Blond-Woman-Taking-Notes-Clipart-Illustration.jpg

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