Abrasion weather rock

1. Do mountains last forever? Explain why with as much detail as you can. What causes them to last forever or not last forever?
2. Explain at least two ways that solid rock can break into smaller pieces naturally?
3. How are rocks at the top of a mountain different than the ones at the bottom? What makes them that way? How did our experiment demonstrate that?

1. Mountains do/do not last forever because... 
2. One way solid rock can break into smaller pieces naturally is by ___________. This means that... Another way solid rock can break into smaller pieces naturally is by ___________. This means that... 
3. Rocks at the top of a mountain are... Whereas rocks at the bottom of a mountain are... The rocks at the bottom become this way by... Our demonstration showed us that by...