Weathering and Erosion

3. a large block of soil or rock that moves downhill in one piece
7. rocks break down due to these types of reactions
8. movement of broken down rocks
10. rocks rich in iron react with oxygen in the air and create rust
12. agent of mechanical weathering in Chicagoland area
14. this type of activity includes plant roots growing into rocks and breaking them
17. minerals in rock react with carbon dioxide and break down rock
18. water reacts with minerals and dissolve a rock

1. very slow downhill movement of broken down soil
2. this type of plant uses a weak acid to break down rock
4. the physical breakdown of rocks
5. change in physical form or chemical composition of rock
6. the Grand Canyon was created after millions of years of this type of mechanical weathering
9. final product of weathering and erosion
11. water freezes and expands within cracks in rock
13. this agent of erosion blows rock particles around
15. can cause soil to loosen and create a landslide
16. this weathering includes nitric and sulfuric acids to "wash away" the features of statues made of rock