Across
- 2. Low areas carved by rivers between hills or mountains.
- 3. The breaking down of rocks into smaller pieces where they are found.
- 6. Humans can cause this type of weathering through activities like mining.
- 9. Chemical weathering where minerals absorb water and expand.
- 10. Rusting of iron-rich rocks due to oxygen.
- 12. A type of weathering that breaks rock without changing its composition.
- 14. The place where a river begins.
- 16. Flowing water that shapes the landscape through erosion and deposition.
- 18. separation Physical weathering where large rock blocks split along joints.
- 19. Weathering in which individual mineral grains loosen and fall away.
- 21. The steepness or incline of the land.
Down
- 1. The dropping of transported sediment.
- 4. Peeling off of outer rock layers due to heating and cooling.
- 5. The wearing away and movement of rock by water, wind, or ice.
- 7. Weathering caused by living organisms.
- 8. Chemical weathering where water reacts with minerals to form clay.
- 11. Ridges of high land that extend into a river valley.
- 13. A type of weathering that changes the composition of rock.
- 15. Chemical weathering caused by carbon dioxide dissolved in rainwater.
- 17. Roots that grow into cracks and split rocks apart.
- 20. Burrowing creatures that help break up rocks and soil.