Across
- 5. Rainwater mixed with pollution that dissolves and weakens rocks.
- 6. A narrow ridge of sand built up by wave action in shallow water.
- 7. Rock breaking from repeated heating and cooling.
- 10. A ridge of debris left behind by a glacier.
- 11. A mineral deposit that builds upward from a cave's floor.
- 12. When sediment is laid down in a new place.
- 13. Water freezing and expanding in cracks to break rocks apart.
- 15. A mineral formation that hangs from a cave's ceiling.
- 16. The process where rocks change because of chemical reactions.
- 18. The breaking of rocks into pieces without changing their material.
- 20. Oxygen combining with minerals in rocks, often causing them to rust.
- 21. The upward pushing of Earth's crust by internal forces.
- 22. The process that breaks rocks down into smaller pieces over time.
Down
- 1. A huge slow-moving mass of ice that shapes the land as it moves.
- 2. Small fragments of rock and soil created by weathering.
- 3. The process where rocks wear down by rubbing against each other.
- 4. Plant roots forcing rocks apart by growing into cracks.
- 8. Water reacting with minerals to create softer substances like clay.
- 9. Rapid downward movement of rocks and soil caused by gravity.
- 12. A landform created by sediment deposits at the mouth of a river.
- 14. The movement of weathered materials by water, wind, ice, or gravity.
- 17. A fan-shaped area formed when a river spreads out at the bottom of a slope.
- 19. A structure in caves formed when stalactites and stalagmites meet.