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Rocks

Each type of rock is formed differently and can change from one type to another over time.. Types of Rocks. Sedimentary Rocks. Metamorphic Rocks. Igneous Rocks. Sedimentary Rocks How They are Made. Forms from the compaction and/or cementation of rock pieces, mineral grains, or shell fragments called

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Rocks

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    1. Rocks 8.3.4 Explain how igneous, metamorphic, and sedimentary rocks are interrelated in the rock cycle.

    2. Each type of rock is formed differently and can change from one type to another over time.

    3. Types of Rocks

    4. Sedimentary Rocks How They are Made Forms from the compaction and/or cementation of rock pieces, mineral grains, or shell fragments called sediments. Sediments are formed through the processes of weathering and erosion of rocks exposed at Earth�s surface. Sedimentary rocks can also form from the chemical depositing of materials that were once dissolved in water.

    5. Types of Sedimentary Rocks

    6. Igneous Rocks What are They? � Forms when molten rock (magma) cools and hardens. � If cooling takes place slowly beneath Earth�s surface, the igneous rock is called intrusive. � If the cooling takes place rapidly on Earth�s surface, the igneous rock is called extrusive.

    7. Types of Igneous Rocks

    8. Metamorphic Rocks What are They? Forms when rocks are changed into different kinds of rocks by great heat and/or pressure. They are heated, squeezed, folded, or chemically changed by contact with hot fluids.

    9. Types of Metamorphic Rocks

    10. Rock Cycle The rock cycle is an ongoing process. It is a series of natural processes that can change rocks from one kind to another. Check out the diagram on the next slide!

    12. Rocks 8.3.4 Explain how igneous, metamorphic, and sedimentary rocks are interrelated in the rock cycle.

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