Across
- 1. B horizon: mostly made of weathered minerals from the bedrock
- 3. rain containing carbonic acid damages cities and wildlife
- 7. occurs when rocks rub against each other
- 10. transforms rocks into new substances
- 13. loose material at the surface of the earth
- 14. forms below the Earth's crust by head and pressure
- 15. changing of rock
- 16. sheets of rock peel away like layers of an onion
- 17. larger than clay particles
- 19. R horizon: unweathered parent material
Down
- 1. forms when remains of tiny living things settle and harden
- 2. grow up from the ground as a result of the dripping of dissolved calcite
- 4. when water gets underneath a rock, freezes and pushes the rock out of the ground
- 5. largest kind of particle
- 6. equal parts sand and silt with half as much clay
- 8. smallest kind of particle
- 9. rock freezes and expands and forces rock apart
- 11. hang from the ceiling and look like stone icicles
- 12. forms when magma cools below or above Earth's surface
- 14. breaks rocks into smaller and smaller pieces
- 18. A horizon: where plants grow roots