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8th Grade Science

Earth's Interior

QuestionAnswer
geologist scientist who study the forces that make and shape the planet Earth
crust the outermost solid layer of the earth
mantle is located between the core and the crust. It is a region of hot, slow flowing, solid rock
core extends from below the mantle to the center of the Earth. Believed to be made mostly of iron and some nickel.
convection is the movement of matter that results from differences in density caused by variations in temperatures
convection currents heating and cooling of a fluid, changes in its density, and gravitational pull
lithosphere The Outermost, rigid layer of Earth. Two parts. The crust and the rigid, upper part of the mantle. It is divided into pieces called tectonic plates.
asthenosphere is the layer of weak or soft mantle that is made of rock that flows slowly. Tectonic plates move on top of this layer.
mesosphere The strong, lower part of the mantle. Rock flows more slowly.
outer core is the liquid layer of the Earth's core. It lies beneath the mantle and surrounds the inner core.
inner core is solid, dense center of our planet that extends from the bottom of the outer core to the center of the Earth.
Created by: SSC