Hierarchic: 3 Main Ideas TM Makes Sense Sense Strategies Strategies Makes Frame s © 2007 Edwin Ellis, All Rights Reserved Published by Makes Sense Strategies, LLC, Lillian, AL www.MakesSenseStrategies.com Date:Quiz Name: The layers of the Earth Date: Tues. 10/4 Is about … The kind of materials that make up the mass and volume of the Earth. CRUST MANTLE CORE Outermost layer in which we live Thickest layer OUTER CORE Thinnest and hardest layer At the top of the mantle is the MOHO. This area marks the boundary between the mantle and the crust. Made of mostly nickel Broken into plates. Coolest layer Is a liquid INNER CORE Is a solid. Extension: Divided into 4 spheres: Made of iron and nickel 1.)Lithosphere Extension: Divided into 2 sections: The Oceanic crust and the Continental Crust 2.) Asthenosphere 3.) Mesosphere 4.) Lower Mantle Hottest layer So what? What is important to understand about this? To help us understand how landforms are created and how active the Earth is around us. Also, this will help people make decisions on where to live and how structures are built in certain areas of the world.