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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