| Down |
| 1. | Is the process that takes place by which one tectonic plate moves under another tectonic plate, sinking into the earth's mantel as the plates converge. |
| 3. | Is an actively deforming region where two (or more) tectonic plates or fragments of lithosphere move toward one another and collide. (2 words) |
| 4. | This occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge (3 words) |
| 5. | Is a theory, which describes the large-scale motions of earth's lithosphere. (2 words) |
| 6. | the Earths liquid layer that is composed of iron and nickel, which lies above the Earth's solid inner. (2 words) |
| 7. | Is the type of rock that is formed by sedimentation of material at the Earth's surface and within bodies of water. |
| 8. | Is the result of a sudden release of energy in the earth's crust that creates seismic waves. |
| 9. | the supercontinent that existed during the Paleozoic and Mesozoic eras about 250 million years ago, before the component continents were separated into their current configuration. |
| 11. | Molten rock beneath the surface of the earth. |
| 12. | Is the movement of the Earth's continents relative to each other. (2 words) |
| 15. | Is a large landform that stretches above the surrounding land in a limited area usually in the form of a peak. |
| 16. | the physical disintegration and chemical decomposition of earth materials at or near the earth's surface. |
| 17. | is a gravity driven process that moves solids in the natural environment and deposits them elsewhere. |
| 20. | the outer solid layer of a planet. |