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APES 12/15 Please take out your Plate Tectonics Lab and Notes/Questions from the PowerPoint Questions from Notes • With your group, share your questions and (hopefully) answers with each other. Lab Work Time (20 minutes) • Complete conclusion questions 1-8 Due Next Time: Module 25 reading guide, finished PT lab. Prepare for Soil Lab 1. Dig down about 6 inches and get about half a bag of soil. 2. Lay your soil sample out to dry on a labeled paper towel. 2. Put 35 ml of the soil into a tube and add 15 ml water. Shake for 1 min. Label and set aside. The Rock Cycle How does the lithosphere form? Types of rock Igneous Sedimentary Metamorphic Igneous Rocks Magma is pushed to the surface by volcanoes.. Pools of magma cool down slowly in the crust to form igneous rocks. Igneous rocks are crystalline and hard to break. Smaller crystals form through fast cooling – such as pumice. - Wind, water and/or ice transport these particles to floodplains and the sea by erosion. - The pressure of many layers changes the bottom layers into sediments. Sedimentary Rock • Forms from sediment particles that are deposited by water, wind or ice. • Formed under great pressure – no heat is involved. • Properties: – Found in layers – Often contains fossils Metamorphic Rock • Rock that started as igneous or sedimentary. • Forms due to immense heat and/or pressure of the earth’s crust. • Properties: – Crystalline – Compressed structure Types of Rock- exploration • Examine each set of rocks • What characteristics are in common for igneous rocks? Sedimentary? Metamorphic? • With a partner: how does each type of rock form? Summarize the rock cycle.