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Rock Cycle PowerPoint Presentation

Rock Cycle

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Rock Cycle

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  1. Rock Cycle • Khaki Strebel-6th grade • Main Objectives -Students will be able to explain the rock cycle -Students will be able to identify the main types of rocks in the rock cycle. -Students will be able to give examples of each of the main types of rocks. Khaki Strebel 2009

  2. Rock Cycle Overview Khaki Strebel 2009

  3. Sediment • Sediment is formed from weather and erosion. • Sediment-small, solid pieces of material that come from rocks or organisms. Khaki Strebel 2009

  4. Deposition • Deposition occurs after the sediment is formed. • Deposition-process in which sediment is laid down in new location. Khaki Strebel 2009

  5. Cementation and Compaction • Next cementation and compaction happens. (lithification) • Cementation-the process by which dissolved minerals crystallize and glue particles of sediment together. • Compaction-the process by which sediments are pressed together under their own weight. Khaki Strebel 2009

  6. Sedimentary Rocks • Sedimentary rock- a type of rock that forms when particles from other rocks or the remains of planets and animals are pressed and cemented together. • Examples: • Sandstone • Shale • Conglomerate Khaki Strebel 2009

  7. Heat and pressure • When heat and pressure are applied to sedimentary rocks they form metamorphic rocks Khaki Strebel 2009

  8. Metamorphic Rock • Metamorphic rock- a type of rock that forms form an existing rock that is changed by heat, pressure, or chemical reaction. • Examples • Quartzite • Gneiss • Slate Khaki Strebel 2009

  9. Magma and Lava • This causes the rocks to melt. Khaki Strebel 2009

  10. Cooling • Cooling comes after the melting. • The rate of cooling is effected by the location of the magma/lava. • This also effects what kind of igneous rock is formed. Khaki Strebel 2009

  11. Igneous Rock • Igneous rock-a type of rock that forms from the cooling of molten rock at or below the surface. • Intrusive and extrusive • Examples • Granite • Obsidian • Rhyolite Khaki Strebel 2009

  12. Rock Cycle Review Khaki Strebel 2009

  13. Let’s play a game Khaki Strebel 2009

  14. Review • sedimentary, metamorphic, igneous • Sedimentary-sandstone, shale, conglomerate • Metamorphic- quartzite, gneiss, slate • Igneous- granite, obsidian, rhyolite • What are the 3 types of rocks? • Can you give me any examples mentioned in this PowerPoint for each of the 3 types of rocks? Khaki Strebel 2009

  15. If you want, go to the website below and play the game. • https://www.teachingwithtech.org/student_content/earth_science/files/rock_cycle.swf • This is a GREAT site to use for studying! Khaki Strebel 2009