1. Access Prior Knowledge Lesson 6: How are rocks classified? Opening Activity Open Science textbook to page 286. Open Science workbook to page 91A to review home learning. Open Science folder to review vocabulary words and outline for the chapter. Open Science journal and answer the following questions: 1. What are the causes of erosion? Re view Content Cards and Q-Cards in bin, sharing with partners quizzing each other quietly. Log in to clickers using student ID number. Be ready to review home learning when timer goes off. Don't forget to write your home learning in your agenda page 93A.

2. 1In general, all rocks are formed in the same way. Yes No Do you agree with the statement?

3. 2Igneous rock is formed by pressing layers of rock together. Yes No Do you agree with the statement?

4. 3Many fossils can be found in sedimentary rock. Yes No Do you agree with the statement?

5. 4Rocks can change from one type of rock to another, or not change at all. Yes No Do you agree with the statement?

6. Igneous Rocks Igneous rocks form when melted rock cools and hardens forming mineral crystals. Large crystals form when the rock cools slowly, like in granite. Small crystals form when the rock cools quickly, like in basalt. First paragraph pg. 286

7. Sedimentary Rocks Sedimentary rocks form when layers of materials and sediments settle on top of each other. These sediments harden and natural chemicals act like cement holding the sediments together, like in sandstone and conglomerate. Fossils often form in sedimentary rock. Fourth paragraph pg. 286

8. Metamorphic Rock Certain conditions are necessary for metamorphic rock to form. Solid rock must be squeezed and heated to high temperatures. This causes rock particles to form a new pattern, change the properties and may form new minerals, creating a metamorphic rock. Second paragraph pg. 287

9. Rock Cycle Rocks can change from one kind of rock to another in the rock cycle. Heat and pressure can change igneous rocks into metamorphic rocks. Cooling can change metamorphic rocks into igneous rocks. Weathering can change metamorphic or igneous rocks to sedimentary rocks. First paragraph pg. 288 Rock Cycle

11. Relative Ages of Rocks Rock layers at Earth’s surface are younger than rock layers below them. Events like earthquakes and volcanoes can make these layers bend or turn over. Types of Rocks

12. Metamorphic Igneous Sedimentary MatchQuest

13. TextQuest Answer questions in your Science journal. 1. How can you identify an igneous rock? 2. When looking at layers of rocks, where would the oldest rock be found? 3. How can rocks change from one kind to another? Don't forget to write your home learning in your agenda page 93A.