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Convection currents : the primary force that causes the sea floor to spread and continents to drift.
tectonics : Plate_______________.
Asthenosphere : the zone below the lithosphere.
subduction : _______zones. Places where the seafloor is forced under.
mantle : section of the earth below the crust.
crust : The most outer solid portion of the planet earth.
fossils : paleontologist notice these were the same on different continents
lithosphere : the outer part of the earths crust, composed of solid rock
radioactive : source of heat in the mantle.
oceanic crust : places where new seafloor is being created
spread : Seafloor___________.
mariana trench : the deepest parts of the oceans
Alfred Wegener : Scientist who first proposed that termal convection in the mantle
Drift : The theory of continental_______.
magnetic : The earth's _________ field reverse from time to time.
Across:2. | the zone below the lithosphere. | 5. | The theory of continental_______. | 6. | _______zones. Places where the seafloor is forced under. | 7. | section of the earth below the crust. | 9. | Seafloor___________. | 11. | Scientist who first proposed that termal convection in the mantle | 12. | the outer part of the earths crust, composed of solid rock | 13. | the primary force that causes the sea floor to spread and continents to drift. | 14. | source of heat in the mantle. |
| | Down:1. | Plate_______________. | 3. | paleontologist notice these were the same on different continents | 4. | places where new seafloor is being created | 7. | the deepest parts of the oceans | 8. | The earth's _________ field reverse from time to time. | 10. | The most outer solid portion of the planet earth. |
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Across:2. | the zone below the lithosphere. | 5. | The theory of continental_______. | 6. | _______zones. Places where the seafloor is forced under. | 7. | section of the earth below the crust. | 9. | Seafloor___________. | 11. | Scientist who first proposed that termal convection in the mantle | 12. | the outer part of the earths crust, composed of solid rock | 13. | the primary force that causes the sea floor to spread and continents to drift. | 14. | source of heat in the mantle. |
| | Down:1. | Plate_______________. | 3. | paleontologist notice these were the same on different continents | 4. | places where new seafloor is being created | 7. | the deepest parts of the oceans | 8. | The earth's _________ field reverse from time to time. | 10. | The most outer solid portion of the planet earth. |
| |
© 2013
PuzzleFast.com, Noncommercial Use Only