Across
- 3. Natural flow of groundwater
- 5. Does not allow water through
- 7. Deep hole for groundwater
- 9. Cave formations hanging from roof
- 12. Rock dissolved by weak acid
- 13. Breakdown of rocks in place
- 14. Rusting caused by oxygen
Down
- 1. Allows water through
- 2. Underground water-bearing rock
- 3. Cave formations rising from floor
- 4. Slow downhill soil movement
- 6. Removal of rock or soil
- 8. Wearing away of the Earth’s surface
- 10. Full of tiny holes
- 11. Dissolving of minerals in water