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Rock Types PowerPoint Presentation

Rock Types

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Rock Types

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  1. Igneous Rocks Rock Types Sedimentary Rocks Metamorphic Rocks Today copy everything.

  2. Rock Types Rocks are classified (organized) based on how they were formed (made). There are 3 types of rocks.

  3. Copy this graphic organizer.

  4. I. Sedimentary RocksHow They are Made • Wind and water break down the Earth. • Sediment (bits of Earth) settle in lakes and rivers. • Layers are formed and build up. • Pressure and time turn the layers to rock.

  5. Sandstone Limestone Gypsum Conglomerate Shale Types of Sedimentary Rocks Copy the names of the rocks.

  6. II. Metamorphic RocksWhat are They? • Rocks that have changed • They were once igneous or sedimentary rocks. • Pressure and heat changed the rocks.

  7. Schist Gneiss Types of Metamorphic Rocks Copy the names of the rocks.

  8. Igneous RocksWhat are They? • Formed underground by trapped, cooled magma. • Formed above ground when volcanoes erupt and lava cools.

  9. Scoria Granite Pumice Obsidian Copy the names of the rocks. Types of Igneous Rocks

  10. Rocks