1. Aim: What information will be covered on our rocks and minerals exam? Objective: Students will know the information required of them for their exam. Do now: How can we tell if one fossil is older than another?

2. Study ► Rocks  3 rock types  How each rock type forms  How to use the rock cycle diagram ► Fossils  What they are  How to find their relative age Review minerals

3. What are the three rock types?

4. What is the main difference between a mineral and a rock?

5. Which rock type forms under immense heat and pressure?

6. Which rock type forms from the solidification (cooling) of magma?

7. Which rock type forms from the cementation and compaction of sediments?

8. What are sediments?

9. What causes sediments?

17. What type of rock forms directly from magma?

18. Identify the two processes required for the formation of a sedimentary rock

19. What type of rock is most likely to be found at the base of a volcano?

20. ► Which fossil is youngest?

21. ► What fossil is older dinosaurs or armored fish?

22. ► Which layer of bedrock formed first?

23. ► Explain why the trilobites are considered the old fossil in this diagram.

24. ► Explain how this diagram shows that the earth’s layers of rock were not formed at the same time.

25. ► The end

26. Bonus ► Why do we find the relative age of the fossils and not the exact age?