Bone - solid part of the skeleton of an animal, Fossil - the remains of an organism , Prehistoric - something that occured a long time ago, Erosion - The wearing away of rock or soil by water or wind, Dinosaur - a reptile that lived on Earth during the Jurassic period, Mold - an impression left by an organism, Cast - liquid material poured into the mold to make 3D model, Geological Timescale - a record of time periods in Earth's history, Shale Rocks - rocks made from hardened mud, plants or bones, Sedimentary Rocks - rocks moved by water, wind or ice, Sediment - particles like sand that break off rocks, Metamorphic Rocks - rocks made by heat and pressure, Igneous Rocks - rock made when molten rock cools and hardens, Weathering - the breaking down of rocks into smaller pieces by the weather, Geologist - a scientist that studies rocks, Earthquake - a sudden shaken of Earth's plates, Tsunami - a large ocean wave caused by an earthquake or volcano eruption, Volcano - a mountain that blows molten lava, Sandstone - small shells, pebbles, sand, minerals, Limestone - sandy colored sand of sedimentary rock,

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