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Chapter 1

McGraw Hill Lesson 2 Earth's Layers

TermDefinition
crust the brittle, rocky, least dense, outer layer or Earth
mantle the thick middle layer in the solid part of Earth.
core The dense metallic center of Earth
outer core the liquid layer surrounding the inner core, composed of liquid and iron and nickel.
inner core the innermost geologic layer or Earth, a dense ball of solid iron crystals.
metal a type of substance, typically an element, typically hard, opaque, shiny, and has good electrical and thermal conductivity.
temperature a measure of the average kinetic energy of all of the particles in a substance.
pressure the force exerted over a given area
density a characteristic property of a substance that describes how much mass is packed into a given volume
Created by: user-1872313
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