The document discusses changes to Earth's surface and provides seven examples of landforms with the question "What caused this?". It then briefly introduces two theories for how changes occur on Earth: catastrophism, which involves sudden geological changes, and uniformitarianism, which asserts that changes happen gradually through small, uniform processes over long periods of time.

1. Changes to
Earth’s Surface
*Copy
things in
black
12L

2. What caused this?
1. I think this river bend was formed…

3. What caused this?
2. I think this mountain was formed…

4. What caused this?
3. I think this big hole was formed…

5. What caused this?
4. I think this cloud of dust was formed…

6. What caused this?
5. I think this valley and lake was formed…

7. What caused this?
6. I think this rock formation was formed…

8. What caused this?
7. I think this island was formed…

9. Two Theories
•Catastrophism—f
•Uniformitarianism—f

10. What caused this?
7. I think this island was formed…