Rocks and Minerals Igneous Rock • Can you remember what igneous rocks are made from? • That’s right!! Igneous rocks are made from lava or magma that has been cooled and hardened into a rock. Sedimentary Rock • Sedimentary rock is made from what? • Correct!! It is made from sediment (this one should be easy to remember!!). Sediment is tiny little pieces of rock that is smashed together really hard for a really long time. It eventually becomes a rock! Metamorphic Rock • Can you think of a time where you have heard a word like Metamorphic? • If you said when a butterfly changes, you are correct (metamorphosis) • The idea is that when a rock changes, it also metamorphoses into a different rock! •A metamorphic rock could become an igneous, a sedimentary, or another metamorphic rock. It all depends on what happens to the rock!!! The Rock Cycle • The rock cycle is the idea that all rocks can become all other types of rocks by adding heat and/or pressure! Just think of it like this!!! • Rock Cycle Song (Sing to the tune of "Row, Row, Row Your Boat") • SEDIMENTARY rock Has been formed in layers Often found near water sources With fossils from decayers • Then there's IGNEOUS rock Here since Earth was born Molten Lava, cooled and hardened That's how it is formed • These two types of rocks Can also be transformed With pressure, heat and chemicals METAMORPHIC they'll become. Can you classify these rocks??? • Classify each of the rocks as igneous, sedimentary, or metamorphic. Discuss with your neighbor. We will decide as a group what we believe each picture is!