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outline 5.1
| Term | Definition |
|---|---|
| sphere | shaped like a ball, with all points on the surface at an equal distance from the center |
| geosphere | Earth's entire solid body |
| gravity | the force that every object exerts on every other object because of their mass |
| density | is the amount of mass in a material per unit volume |
| crust lesson 2 | the brittle, rocky outer layer of earth |
| mantle | the thick middle layer in the solid part of earth |
| lithospere | scientists group the crust and the uppermost mantle into a rigid layer |
| asthenospere | a plastic layer within the mantle |
| core | the dense metallic center of earth |
| magnetosphere | the outer part of the magnetic field that interacts with these particles |