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vocabulary Chapter 1
study of the chapter that we are reading
| Term | Definition |
|---|---|
| geologist | A scientist who studies the forces that make and shape planet Earth. |
| rock | A scientist who studies the forces that make and shape planet Earth. |
| geology | The study of planet Earth |
| constructive force | shape Earth's surface by building up mountains and land masses |
| destructive force | Destroys and wears away landmasses through a process like erosion and weathering |
| continent | one of Earth's seven large land areas |
| seismic waves | a ground vibration produced by an earthquake. |
| pressure | the force pushing on a surface or area. |
| crust | The outermost layer of solid rock that includes both dry land and the ocean floor.The thinnest layer of the Earth. |
| basalt | A dark, dense, igneous rock, found in oceanic crust. |
| granite | the most abundant rock in the continental crust. |
| mantle | The thick layer of hot, rock between Earth's crust and core that has convection currents. |
| lithosphere | The crust and upper mantle of the Earth that is solid and rigid. |
| asthenosphere | The soft layer of the mantle on which the lithosphere floats. |
| outer core | a layer of molten (melted) metal, mainly nickel and iron, that surrounds Earth’s inner core. |
| inner core | A solid sphere of iron and nickel at the center of the earth. |