11Sedimentary RocksSedimentary Rock is formed from sediments (rock fragments, mineral grains, animal & plant remains) that are pressed or cemented together.Sedimentary rocks form at or near the earth's surface at relatively low temperatures and pressuresThese sediments are moved by wind, water, ice or gravity.Sedimentary rocks are fossil-carrying rocks. They can be formed underwater, too, and can be made up of bits of shells and skeletons of sea animals.
13Metamorphic RockMetamorphic Rocks are those that have changed due to intense temperature and pressure.Metamorphic rocks CHANGE FORM. Both igneous rocks and sedimentary rocks can change into metamorphic rocksHeat and pressure do not change the chemical makeup of the parent rocks but they do change the physical properties of those rocks. This rock has many layers.
15The Life of a Rock Layers of sediment join together. Changes are made from pressure and heat.Melted rock cools and hardens
16Once a rock is formed, does it stay the same rock forever? NO!
17Rocks are continually changed by many processes, such as weathering, erosion, compaction, cementation, melting, and cooling Rocks can change to and from the three types
18Rocks become bigger, and bigger, and bigger, and bigger . . . By earthquakesBy volcanoesBy heat and pressure
19Rocks become smaller, and smaller, and smaller, and smaller. . . By erosionBy windBy earthquakeBy floodsBy rainBy mudslides
20The 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 decayersThen there's IGNEOUS rock Here since Earth was born Molten Lava, cooled and hardened That's how it is formedThese two types of rocks Can also be transformed With pressure, heat and chemicals METAMORPHIC rocks they’ll be.