Homework Earth Science 7

 

Directions: Please answer the questions below using complete sentences.

 

1) Listed below are the three types of rocks. Describe how each of these rocks are formed.

 

a)     sedimentary: ____________________________________________________

 

b)     igneous: ____________________________________________________

 

c)      metamorphic: ____________________________________________________

 

 

2) Compare and contrast physical and chemical erosion.

 

 

 

3) How is acid rain formed? Why is acid rain harmful to rocks?

 

 

 

 

4) Describe how ice breaks down rocks?

 

 

 

 

5) Describe how plants break down rocks?

 

 

 

 

6) What characteristic of a glacier allows it to break down rocks?

 

 

 

 

7) Where do eroded, broken down rocks end up?

 

 

 

8) What do you think is stronger, wind or water erosion? Why?