Across
- 1. Rock type formed by heat and pressure.
- 5. Semi-fluid layer of the mantle.
- 6. Molten rock found on the Earth's surface.
- 7. Boundary at the mid-Atlantic ridge.
- 10. Molten rock found under the Earth.
- 11. Largest sea.
- 13. ___ scale measures Earthquake intensity.
- 14. Rocks are weathered down into ___.
- 15. Plate collide at ___ boundaries.
- 18. Sharp igneous rock.
- 21. Past climate.
- 22. Glacial ___ show the direction ice moved.
- 24. The transport of weathered material.
- 25. Oceanic plates ___ under continental plates.
- 26. Exact point earthquake occurs.
- 27. Boundary at the San Andreas Fault.
- 28. Record of seismic waves.
- 29. Ancient supercontinent where all landmasses were joined.
Down
- 2. Continuous freeze-thawing of water in rock cracks. (2 words)
- 3. Alfred ___ first proposed continental drift.
- 4. Bituminous ___.
- 5. Wind, water and ice are all ___ of erosion.
- 8. Scientist that study rocks.
- 9. Point on Earth's surface directly above focus.
- 12. Creates volcanoes away from plate boundaries.
- 16. Largest ocean.
- 17. ___ penetration is an example of biological weathering.
- 19. Sudden shaking of the ground caused by tectonic plate movement.
- 20. Freshwater reptile fossil found only in South America and Africa.
- 23. Rock type formed by the cooling and solidifying of molten rock.