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8th Grade Science
Earth's Interior
| Question | Answer |
|---|---|
| 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 8th LA
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