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Understanding Rocks: Types, Properties, and Formation Processes for Fourth Graders

This engaging resource, tailored for fourth-grade students, explores the fascinating world of rocks and minerals. It describes the three main types of rocks—igneous, sedimentary, and metamorphic—along with their properties and formation processes. Students will learn how igneous rocks form from cooled magma or lava, how sedimentary rocks are created from compacted rock pieces, and how metamorphic rocks develop under heat and pressure. The text emphasizes the rock cycle and features regional rock types found in California, promoting an appreciation for geology.

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Understanding Rocks: Types, Properties, and Formation Processes for Fourth Graders

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Presentation Transcript

  1. Earth Science Rocks By Maria Flores

  2. Fourth grade Earth Science Standard 4. The properties of rocks and minerals reflect the processes that formed them. As a basis for understanding this concept: a. Students know how to differentiate among igneous, sedimentary, and metamorphic rocks by referring to their properties and methods of formation (the rock cycle).

  3. Igneous Rock The Igneous rock form when magma of lava cool and hardens.

  4. Types of Igneous Rocks Basalt Granite Obsidian Pumice

  5. Sedimentary Rocks Sedimentary Rocks are usually made of pieces of rock that have been squeezed and stuck together.

  6. Types of Sedimentary Rocks Sandstone Conglomerate Limestone Shale

  7. Metamorphic Rock • Metamorphic rocks form when heat and pressure change rocks.

  8. Types Metamorphic Rocks Mica Schist Spotted Slate Gneiss Marble

  9. Rock Cycle

  10. Rocks in California Metamorphic Sedimentary Central Valley Igneous Sierra Nevada

  11. References • http://www.tulane.edu/~sanelson/images/snevadabath.gif • http://www.physical geography.net/fundamentals • http://www.childrensmuseum.org/geomysteries

  12. The End

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