Across
- 2. weathering breaks rocks apart without changing their chemical composition
- 3. process of breaking down rocks
- 7. currents are found in the mantle and cause the tectonic plates to move
- 9. tectonic plates that are moving away from each other
- 11. rock formed by heat and pressure
- 15. primary agent for erosion
- 16. rocks formed under pressure but don't need heat
- 17. these geological features form when one tectonic plate subducts under another plate
- 18. evidence of dead plants and animals
- 20. causes landslides and mudflows
Down
- 1. layer of the earth which is believed to be responsible for plate movement
- 4. the earth is made of these and they are constantly moving along above the mantle
- 5. two tectonic plates sliding by each other
- 6. when one tectonic plate goes underneath another plate
- 8. weathering breaks rocks apart by changing their chemical composition
- 10. rock formed by hardening and cooling
- 11. molten rock beneath the surface of the earth
- 12. tectonic plates that move towards each other
- 13. super continent
- 14. the process of moving sediment from one place to another
- 19. molten rock above the surface of the earth
