Across
- 3. Break down rock to create homes
- 5. The force of wind or water pulls out any loose pieces of rock
- 6. the original rock that's underneath an area
- 10. water gets into crack and freezes
- 12. Weathering by living things
- 13. When rain fall it absorbs some CO2
- 14. Formed when a roof or cave collapes
- 16. When a surface flows into an underground passage
- 17. when metal in a rock changes into an oxides form
Down
- 1. The bedrock breaks into flat sheets parallel to the rock surface
- 2. Formations that build up from the floor of the ground
- 4. Formations that hang from the ceiling of caves
- 7. Breaking down rocks by changing their chemical formula
- 8. rocks worn down because of friction with other rocks or other forces
- 9. When a stalactie and stalagmite meet
- 11. Breaking down of bedrock
- 15. When plant roots get into cracks in the rocks