Igneous Rocks Rock Types Sedimentary Rocks Metamorphic Rocks Today copy everything.
Rock Types Rocks are classified (organized) based on how they were formed (made). There are 3 types of rocks.
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.
Sandstone Limestone Gypsum Conglomerate Shale Types of Sedimentary Rocks Copy the names of the rocks.
II. Metamorphic RocksWhat are They? • Rocks that have changed • They were once igneous or sedimentary rocks. • Pressure and heat changed the rocks.
Schist Gneiss Types of Metamorphic Rocks Copy the names of the rocks.
Igneous RocksWhat are They? • Formed underground by trapped, cooled magma. • Formed above ground when volcanoes erupt and lava cools.
Scoria Granite Pumice Obsidian Copy the names of the rocks. Types of Igneous Rocks