Unit 2 Guided Notes (1).docx - Earth Science-Semester A...

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Earth Science-Semester A Unit 2 Guided NotesThis is not for a grade. It is to help you practice and understand the material in the unit’s lessons. If youare still having trouble, watch the recordings and answer these questions or set up a time for help!1.Earth’s Crust:Use information from the following website:to color in the earth and label4.3.2.1.2._____________ – Divided into two subregions, upper and lower, this dense layermade of hot semi rock is located directlybelow the ________ and is about 1800 milesthick.Lithosphere – made up of the crust and tinybit of the mantle, this layer is divided intoseveral constantly (very slowly) moving platesof ___________ ________ that hold thecontinents and oceansAsthenosphere – The plates of thelithosphere move (_____________) on thishot, malleable semi liquid zone in the uppermantle, directly below the lithosphere.1.____________ – hard and rigid, theEarth’s outermost and ____________layer.Only a few miles (5 km) thick underthe oceans and averaging 20 miles thick

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