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Earth's Structure

Chapter 2 - Cassidy

TermDefinition
asthenosphere plastic region of upper mantle that lies below the lithosphere
innre core dense ball of solid iron crystals
gravity force that every object exerts on other objects pulling toward the center; holds everything on Earth
outer core liquid layer of magma around the inner core
magnetosphere outer region of the earth's ionosphere, where the earth's magnetic field controls the motion of charged particles
atmosphere Earth's outermost layer of gases
hydrosphere Earth's water made up of salt water, fresh water, and ice
core dense metallic center of Earth
mantle thick middle layer of the Earth
sphere object shaped like a ball with all points equidistant from the center
geosphere Earth's entire solid body and it's largest system
biosphere contains all of Earth's living organisms
density mass per unit volume; D = m/v
crust thin, brittle outer rocky surface layer of Earth
lithosphere solid and rigid outer layer of Earth that includes the crust and upper mantle
Created by: lindakelly