2. Starter 1.What are the building blocks of rocks? 2.Minerals that form from magma form as the result of _______________________. 3.Why is color not a useful identification property? 4.What is a mineral’s streak? 5.What is the most common mineral group?

3. What are the building blocks of rocks? Use what you have learned about the rock cycle to explain the following statement. One rock is the raw material for another rock. Compare/Contrast magma & lava.

4. Starter Hot liquid rock on earth’s surface is called _________. Fragments of rocks, minerals, and remains of living things are ____________. Rocks change from one type to another in the _______ __________. Liquid rock that cools on or below the surface forms ______ _________.

5. 3.2-3.4 Types of Rocks p. 66 Today, you will be able to: Compare and contrast intrusive and extrusive igneous rocks. Describe the major processes involved in the formation of sedimentary rocks. Identify the features that are unique to some sedimentary rocks. Predict where most metamorphism takes place. http://www.public-domain-image.com/nature- landscape/canyon/slides/bryce-canyon-hoodoos.jpg

7. Vocabulary Intrusive igneous rock Extrusive igneous rock Erosion Deposition Compaction Cementation Metamorphism

8. Keep in mind that: ALL MINERALS AND ROCKS ARE CLASSIFIED BASED ON THEIR COMPOSITION!!!

9. Igneous Rocks Formation of Igneous Rocks –Intrusive igneous rocks are formed when magma crystallizes beneath Earth’s surface. –Extrusive igneous rocks are formed when lava crystallizes above Earth’s surface.

10. Igneous Rocks Obsidian http://www.oldearth.org/cur riculum/geology/images/Obs idian1.jpg http://0.tqn.com/d/geology/1 /0/g/V/granitesalinia.jpg Granite http://0.tqn.com/d/geology/1 /0/L/W/pumiceoakland.jpg Pumice

11. Sedimentary Rocks Formation of Sedimentary Rocks –Weathering, Erosion, Deposition Weathering is the natural process of physically or chemically breaking down rocks. Erosion involved the weathering and removal of rock. Deposition occurs when an agent of erosion (water, wind, ice, or gravity) loses energy and drops sediments.

12. –Compaction, Cementation Compaction is a process that squeezes (compacts) sediments. Cementation takes place when dissolved minerals are deposited in the tiny spaces between sediments.

13. Sedimentary Rocks

14. Siltstone http://0.tqn.com/d/geology/1 /0/m/7/1/mckittrick9.jpg http://academics.smcvt.edu/ vtgeographic/textbook/geol ogy/Sedimentary_layers.jpg

15. Metamorphic Rocks Formation of Metamorphic Rocks –Metamorphism means “to change form” –Most metamorphic changes occur at elevated temperatures and pressures. –Conditions for formation are found a few kilometers below the Earth’s surface and can extend into the upper mantle.

16. Agents of Metamorphism –Heat  provides the energy needed to drive chemical reactions –Pressure  causes a more compact rock with greater density

17. Metamorphic Rocks

18. http://0.tqn.com/d/geology/1 /0/Y/S/1/rocpicgneiss.jpg Gneiss Slate http://0.tqn.com/d/geology/1 /0/f/S/1/rocpicslate.jpg

19. Complete Post Test for 3.1 The Rock Cycle Complete Study Guide for Minerals on Page 45

20. Place your Vocabulary Terms in the box Review your Rock Cycle Illustration from Thursday for a Quiz.