The Rock Cycle and Pollution of the Atmosphere (Worksheet 1) Answers
Rocks
Below is a chart highlighting the main details of the three different types of
rock. Can you answer the questions about rocks using this chart?
1. We have listed some materials below. Can you name what state they are from the selection in the box below?
|
| a. | Which type of rock is the
hardest? |
Answer: Igneous | |
| b. | Which type of rock may
contain fossils? |
Answer: Sedimentary | |
| c. | Which type of rock is formed
when molten rock cools and solidifies? |
Answer: Igneous | |
| d. | Over what sort of time
period do sedimentary rocks form? |
Answer: Millions of years | |
| e. | Give two examples of
sedimentary rock. |
Answer:
Sandstone, Limestone, Chalk, Clay |
|
| f. | Give two examples of igneous
rock. |
Answer: Basalt & Granite | |
| g. | Give two example of
metamorphic rock. |
Answer:
Schist, Gneiss, Marble, Slate |
|
| h. | What two factors can cause existing rock to be changed into metamorphic rock? | Answer: Heat & Pressure |