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alfred wegener
Question | Answer |
---|---|
Wegeners hypothesis | all continents were at one time a single land mass. Also, he named continental drift . |
Pangaea | a supercontinent |
scientific theory | An idea that has been tested and it explains many different observations |
Wegeners Evidence | Wegener studied land forms, fossils, and climate to help prove his theory |
Landforms | Mountain ranges and coal beds on different continents line up and fit together |
Fossils | Fern plant fossils are found all over the world |
Climate | Plant fossils in Antarctica, and glacier scratches in South America are evidence in changes |
Rejected | Wegener could not explain how the continents were able to move so his theory was rejected until the 1960's |