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Rock powerpoint
- 1. CHAPTER NEW CHAPTER Rocks the BIG idea Rocks change into other rocks over time. 3.1 The rock cycle shows how rocks change. 3.1 3.2 Igneous rocks form from molten rock. 3.2 3.3 Sedimentary rocks form from earlier rocks. 3.3 3.4 Metamorphic rocks form as existing rocks change. 3.4 CHAPTER OUTLINE
- 2. CHAPTER HOME KEY CONCEPT 3.1 The rock cycle shows how rocks change. VOCABULARY rock rock rock cycle A naturally formed solid that is usually made igneous rock up of one or more types of minerals. sedimentary rock Classified by where they are found, color, metamorphic rock texture and mineral composition KEY CONCEPT KEY CONCEPT SUMMARY SUMMARY
- 3. CHAPTER HOME KEY CONCEPT 3.1 The rock cycle shows how rocks change. VOCABULARY Processes at Earth's surface and heat within Earth rock cause rocks to change into other types of rocks. rock cycle sediment igneous rock sedimentary rock Sedimentary metamorphic rock igneous Metamorphic magma SECTION SECTION OUTLINE OUTLINE
- 4. CHAPTER HOME KEY CONCEPT 3.1 The rock cycle shows how rocks change. VOCABULARY rock igneous rock rock cycle Rock that forms as molten rock cools and igneous rock becomes solid. sedimentary rock metamorphic rock KEY CONCEPT KEY CONCEPT SUMMARY SUMMARY
- 5. CHAPTER HOME KEY CONCEPT Igneous Rock Textures * These rocks are usually defined by their textures. VOCABULARY Texture Definition Example Glassy Shiny, looks like glass Obsidian Fine grained Microscopic crystals Basalt Coarse grained Interlocking crystals Granite Porphyritic Rocky road texture Rhyolite
- 6. CHAPTER HOME KEY CONCEPT 3.2 Igneous rocks form from molten rock. VOCABULARY As molten rock cools, minerals crystallize and form intrusive igneous igneous rocks. rock extrusive igneous rock Extrusive igneous rocks cool quickly at Earth's surface. Intrusive igneous rocks cool slowly within Earth. SECTION SECTION OUTLINE OUTLINE
- 7. CHAPTER HOME KEY CONCEPT 3.2 Igneous rocks form from molten rock. VOCABULARY intrusive igneous rock intrusive igneous rock extrusive igneous Igneous rock that forms as magma cools rock below Earth’s surface. Slow cooling produces larger crystals. Ex. Granite KEY CONCEPT KEY CONCEPT SUMMARY SUMMARY
- 8. CHAPTER HOME KEY CONCEPT 3.2 Igneous rocks form from molten rock. VOCABULARY intrusive igneous rock extrusive igneous rock extrusive igneous Igneous rock that forms as lava cools on rock Earth’s surface. Cools faster producing smaller crystals or holes. Ex. Basalt, pumice KEY CONCEPT KEY CONCEPT SUMMARY SUMMARY
- 9. CHAPTER HOME KEY CONCEPT 3.1 The rock cycle shows how rocks change. VOCABULARY rock sedimentary rock rock cycle Rock formed as pieces of older rocks and igneous rock other loose materials get pressed or cemented sedimentary rock together or as dissolved minerals re-form and build up in layers. metamorphic rock KEY CONCEPT KEY CONCEPT SUMMARY SUMMARY
- 10. CHAPTER HOME KEY CONCEPT 3.3 Sedimentary rocks form from earlier rocks. VOCABULARY Layers of sedimentary rocks form as sediment • sediments are pressed or cemented together SECTION SECTION OUTLINE OUTLINE
- 11. CHAPTER HOME KEY CONCEPT 3.3 Sedimentary rocks form from earlier rocks. VOCABULARY Layers of sedimentary rocks form as sediment • sediments are pressed or cemented together • dissolved minerals re-form as water evaporates SECTION SECTION OUTLINE OUTLINE
- 12. CHAPTER HOME KEY CONCEPT Categories of Sedimentary Rocks VOCABULARY 1. Clastic: made of fragments of previously existing rocks 2. Organic: formed directly or indirectly from plants or animals that were once living 3. Chemical: formed from large mineral deposits
- 13. CHAPTER HOME KEY CONCEPT Clastic Rocks VOCABULARY Clastic rocks are made of fragments of previously existing rocks • Divided into categories according to shape and size of fragments Conglomerate: 1/3 of the rock contains pebbles Sandstone: made of sand sized grains Shale: made of particles smaller than sand
- 14. CHAPTER HOME KEY CONCEPT Organic Rocks VOCABULARY Organic: formed directly or indirectly from plants or animals that were once living • Limestone: contains calcite and shells. Sometimes fossils • Chalk: fine grained limestone • Coal: formed from remains of living things
- 15. CHAPTER HOME KEY CONCEPT Chemical Rocks VOCABULARY Chemical: formed from large mineral deposits • Rocks that are mined from mineral deposits that formed by evaporation • Examples: rock salt, gypsum
- 16. CHAPTER HOME KEY CONCEPT 3.1 The rock cycle shows how rocks change. VOCABULARY rock metamorphic rock rock cycle Rock formed as heat or pressure causes igneous rock existing rock to change in structure, texture, or sedimentary rock mineral composition. metamorphic rock KEY CONCEPT KEY CONCEPT SUMMARY SUMMARY
- 17. CHAPTER HOME KEY CONCEPT 3.4 Metamorphic rocks form as existing rocks change. VOCABULARY Metamorphic rocks form as the structure of the parent metamorphism rocks change and as their minerals recrystallize. recrystallization foliation heat and pressure shale schist SECTION SECTION OUTLINE OUTLINE
- 18. CHAPTER HOME KEY CONCEPT 3.4 Metamorphic rocks form as existing rocks change. VOCABULARY metamorphism recrystallization recrystallization The process by which bonds between atoms in foliation minerals break and re-form in new ways during metamorphism. Ex. Granite becomes gneiss Shale becomes slate Sandstone becomes quartzite KEY CONCEPT KEY CONCEPT SUMMARY SUMMARY
- 19. CHAPTER HOME KEY CONCEPT 3.4 Metamorphic rocks form as existing rocks change. VOCABULARY foliation metamorphism The arrangement of minerals within rocks into flat recrystallization or wavy parallel bands (stripes); a characteristic of most metamorphic rocks. foliation Examples: schist, slate, gneiss unfolliated: not banded (no stripes) Example: marble KEY CONCEPT KEY CONCEPT SUMMARY SUMMARY
- 20. CHAPTER HOME KEY CONCEPT 3.1 The rock cycle shows how rocks change. VOCABULARY I. The rock cycle shows how rocks change. rock A. Most rocks are made of minerals. rock cycle B. Our world is built of rocks. igneous rock C. Rocks change as they move through the rock cycle. sedimentary rock 1. Rock Types metamorphic rock 2. Rocks in the Crust KEY CONCEPT KEY CONCEPT SUMMARY SUMMARY
- 21. CHAPTER HOME KEY CONCEPT 3.2 Igneous rocks form from molten rock. II. Igneous rocks form from molten rock. VOCABULARY intrusive igneous A. Magma and lava form different types of igneous rock rocks. extrusive igneous 1. Origin of Igneous Rocks rock 2. Textures of Igneous Rocks 3. Composition of Igneous Rocks B. Igneous rocks make long-lasting landforms. 1. Intrusive Rock Formations 2. Extrusive Rock Formations KEY CONCEPT KEY CONCEPT SUMMARY SUMMARY
- 22. CHAPTER HOME KEY CONCEPT 3.3 Sedimentary rocks form from earlier rocks. VOCABULARY III. Sedimentary rocks form from earlier rocks. sediment A. Some rocks form from rock particles. 1. Forming and Transporting Rock Particles 2. Forming Loose Sediment into Rocks B. Some rocks form from plants or shells. 1. Coal 2. Limestone C. Some rocks form when dissolved minerals re-form from water. D. Sedimentary rocks show the action of wind and water. KEY CONCEPT KEY CONCEPT SUMMARY SUMMARY
- 23. CHAPTER HOME KEY CONCEPT 3.4 Metamorphic rocks form as existing rocks change. VOCABULARY IV. Metamorphic rocks form as existing rocks change. metamorphism A. Heat and pressure change rocks. recrystallization B. Metamorphic changes occur over large and small areas. foliation 1. Change over Large Areas 2. Change over Small Areas C. Most metamorphic rocks develop bands of minerals. 1. Foliated Rocks 2. Nonfoliated Rocks KEY CONCEPT KEY CONCEPT SUMMARY SUMMARY
Editor's Notes
- Nit-picky, but the green-gray arrow (prior to and proceeding animation) has a line btw the head and tail. Could bring the two portions together so there is no line? (I can’t figure out how to get down to that arrow…)