Types of Rocks

Learn about igneous, sedimentary, and metamorphic rocks with this fun science worksheet!

Rocks have properties that can be observed, tested, and described. Composition, grain size and textural features, color, and the presence of fossils help with identification. Classification keys also help us with this process.Rocks move and change over time due to heat and pressure within Earth and due to weathering, erosion, and deposition at the surface. These and other processes constantly change rock from one type to another.Depending on how rocks are formed determines how they are classified. There are 3 types of rocks. * metamorphic (changed by heat and pressure) * igneous (melted and cooled, e.g., lava and magma) * sedimentary (layers of sediment cemented together) ~ METAMORPHIC ROCKS ~ changed by heat and pressure Watch and learn about how metamorphic rocks are formed. (1:38) Look at the picture and determine which rock would form in this scenario. metamorphic rock Study these metamorphic rock examples and look for signs of how heat and pressure had formed them. ~ IGNEOUS ROCKS ~melted and cooled, e.g., lava and magma Watch and learn about igneous rocks and their formation. (4:15) Study these igneousrock examples. Can you tell how they had started off melted and cooled to the existing state? Label the picture with the type of rock that forms in this scenario. igneous rock ~ SEDIMENTARY ROCKS ~ layers of sediment cemented together Watch and learn about sedimentary rocks and how they are formed. (2:23) Study and learn the examples of sedimentary rock below. Can you see the layers or sediment pieces that make up the rock? Label the picture with the type of rock that forms in this scenario. sedimentary rock Flocabulary rap on the 3 types of rocks. Listen and review. Match the rock type to the picture that shows how that rock is formed. Igneous Metamorphic Sedimentary Sort the rocks into the correct categories. Click on a rock name and select the correct type in the drop down menu. Sedimentary Coal Limestone Sandstone Shale Metamorphic Gneiss Slate Marble Quartzite Igneous Granite Pumice Obsidian Which type of rock is formed by the melting and cooling of lava and magma? Igneous Sedimentary Metamorphic Which type of rock is formed by layers of sediment cemented together? Igneous Sedimentary Metamorphic Which type of rock is formed by heat and pressure changes? Igneous Sedimentary Metamorphic Match the Latin or Greek words to their meaning. "ignis" means fire "morph" means change or transform "sedere" means to settle or sit