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Science Vocab Ch. 5
Earth's Structure; Lessons 1 - 3
Term | Definition |
---|---|
Sphere | A ... is shaped like a ball, with all points on the surface at an equal distance from the center. |
Geosphere | The ... is Earth's entire solid body. |
Gravity | ... is the force that every object exerts on every other object because of their masses. |
Density | ... is the amount of mass in a material per unit volume. |
Crust | The brittle, rocky outer layer of Earth is called the ... |
Mantle | The ... is the thick middle layer in the solid part of Earth. |
Lithosphere | Scientists group the crust and the uppermost mantle into a rigid layer called the ... |
Asthenosphere | This plastic layer within the mantle is called the ... |
Core | The dense metallic center of Earth is the ..., as shown in Figure 10. |
Magnetosphere | The outer part of the magnetic field that interacts with these particles is called the ... |
Landform | ... are topographic features formed by processes that shape Earth's surface. |
Plain | ... are landforms with low relief and low elevation, as illustrated in Figure 15. |
Plateau | ... are areas with low relief and high elevation. |
Mountain | ... are landforms with high relief and high elevation. |