Name______________________
1-4. Label the four layers of the Earth.
Matching Vocabulary I
| 5, _____ subduction zone | A Pieces of the crust that "float" on the mantle. |
| 6. _____ convection currents | B The only ocean on Earth 250 million years ago. |
| 7 . _____ Pangea | C Movements in a material caused by hotter material rising and cooler material sinking. |
| 8 . _____ Plates | D Supercontinent 250 million years ago |
| 9 . _____Panthalassa | E Area where two plates are colliding. One plate is pushed down under the other plate. |
| 10. ______Magma | A The northern half of Pangea after it split apart. |
| 11. ______Continental Drift Theory | B The deepest places on the surface of the Earth. They are located at subduction zones. |
| 12. ______Mid-ocean ridge | C Molten rock below the surface of the Earth |
| 13. _____ Laurasia | D Place where two plates are separating. These plates are moving in opposite directions making the oceans larger. |
| 14. _____Trenches | E The idea that the Earth's plates are "floating" on the mantle and have been for millions of years. |
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