Convection Currents
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Created by:
OLIVIADURRETT on January 25, 2011
Subjects:
Description:
A, B, C, D, and Continental Drift
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13 terms
Terms | Definitions |
|---|---|
 A | Getting hoter. |
| A to B | The molecules expand because they are less dense because they are hot and the rise. |
| B | The magma hits the hard lithosphere and turns. |
| B to C | The magma is cooling down. |
| C | The molecules are becoming more dense. |
| C to D | The pull of gravity makes the molecules sink. |
| D | The molecules hit the hard mantel and turn again. |
| D to A | The molecules are getting hotter. |
| Evidence from Landforms | Continents fit together. |
| Evidence from Climate | There were once tropical swamps in places that are now in cold climates. |
| Evidence from Fossils | Identical fossils from organisms that could not have crossed the ocean were found on seperate continents. |
| Evidence from Rocks | Rocks of similar type and age were found on seperate continents. |
| Evidence from Mountains | Mountain ranges match across continents. |
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