weathering

3. can cause weathering along a shoreline
5. physical weathering is a naturally or artificially occurring geological phenomenon in which ________ change their physical properties without affecting their chemical composition
7. the natural features of the Earth's surface
9. ___________ are responsible for the physical weathering of rocks as their roots grow up through the surface of the ground and rock face
11. when liquid water changes into solid ice, it increases in __________
14. _____________________weathering-chemical effects of water, carbon dioxide, and oxygen attacking and destroying the minerals that are near the surface of the Earth
15. rain - acid precipitation falling as rain
16. rates - a measurement of the amount of weathering over a given time period
18. when carbon dioxide is present and carried by water, a weak acid called carbonic acid is created
19. ice _______________ - a collective term for several mechanical weathering processes induced by stresses created by the freezing of water into ice

1. the movement of weathered rocks by natural forces
2. beings do a lot of mechanical weathering whenever they dig or blast into rock
4. example of a man-made object that has been changed by weathering
6. ____________________ are also responsible for a good deal of physical weathering as the move along the rocky surface, and as they freeze and melt and refreeze on top of rocky soil
8. one rock bumping against another rock
10. as rocks weather and erode, the ___________ eventually becomes rock again--a sedimentary rock
12. __________________ weathering-any of the destructive effects of the atmosphere and the exposure of rocks to the extremes of the surface
13. - the absorption by a mineral of one or more oxygen ions. The major type of chemical weathering, particularly in rocks containing iron
17. this erosion takes place when minerals in the rock form a new solution, usually due to the presence of water