Igneous Rock, Made of randomly arranged interlocking crystals, Never contain fossils, Can be intrusive or extrusive, Examples include basalt, granite, and pumice, Formed due to volcanic activity, Sedimentary Rocks, Examples include limestone, chalk, and sandstone, Consist of many layers build up over time, Often contain fossils, Can form from mineral build up over time, Often very crumbly in texture, Metamorphic Rocks, Examples include marble and slate, Made up on regular layers of crystals, Formed from the effect of extreme pressure and temperatures, Are formed from other types of rock, Are very dense and hard

Rock Sorting Activity

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