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Continental Drift
Science
4
Science
7th Grade
11/07/2011

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Term
Alfred Wegner
Definition
German Scientist. Came up with the theory of continental drift. Tried to explain that once the continents all were once joined. He said that they made up a supercontinent called Pangea. He had a hard time trying to get his idea through to others.
Term
Pangea
Definition
Pangea was a supercontinent that had all seven continents which meant: North America, South America, Europe, Africa, Asia, Austrailia, and Antartica. Pangea means " All Land". It existed about 300 million years ago. Over 10s of millions of years Pangea broke apart.
Term
Evidence About Land
Definition
Mountain ranges that line up- Africa and South America; coal fields that match up- Europeans with North America.
Term
Evidence from Fossils
Definition
Glossopteris found in rocks in Africa, South America, Austrailia, India, and Antarctia. Glossopteris is a fern like plant that lived 250 million years ago. Fossils are things that are preserved in rock. Some fossils have been found in places now separated by oceans. No reptiles have swum great distances.
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