2. TAKS Objective 5 The student will demonstrate an understanding of earth and space systems.

3. TEKS Objective: 8.12 The student knows that cycles exist in Earth systems. The student is expected to Aanalyze and predict the sequence of events in the lunar and rock cycles.

4. Prior Knowledge TEKS 6.6 C – Students identify forces that shape the feature of the earth including uplifting, movement of water, and volcanic activity. TEKS 7.14 B – Student analyze effects of regional erosional deposition and weathering.

5. Learning Objectives The student will be able to predict the events in the rock cycle. The student will be able to diagram and explain the rock cycle.

6. All rocks are heavy. True or False

7. A heavy piece of rock? Think again!

8. All rocks are hard. True or False

9. False Chalk Pumice Talc

10. Rocks never change. True or False

11. False Rocks are changed by processes such as: –Melting –Pressure –Heat –Weathering and Erosion

12. Teacher Background

13. Igneous rocks are formed when magma cools. http://www.fi.edu/fellows/fellow1/oct98/c reate/igneous.htm

14. Melting

15. Sedimentary rocks are formed when layers of earth have been deposited in the bottoms of bodies of water. Over time these layers are pressed together forming sedimentary rocks. http://www.fi.edu/fellows/fellow 1/oct98/create/sediment.htm

16. Weathering and Erosion

17. Metamorphic rocks were once sedimentary or igneous rocks that have been placed under tons of pressure and heat. http://www.fi.edu/fellows/fellow1/oct98/c reate/metamorph.htm

19. Igneous Sedimentary Metamorphic

20. Rock Cycle Diagram

21.  ENGAGE

22. A rock can be a thing of beauty. Photos by Sandra Woodruff

23. Explore  Explore Chocolate Rocks!

24. Explain How did you simulate weathering and erosion? How are sedimentary rocks formed? How are metamorphic rocks formed? How are igneous rocks formed?

25.  Elaborate Rock Cycle Pictures and Arrows

26.  Evaluate Draw Your Own Rock Cycle Use the words below. The words may be used more than once. Igneous RockMeltingLithofication Sedimentary RockMagmaCementation Metamorphic RockCoolingCompaction Heat and PressurePressure Weathering & ErosionSediments