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Inside Earth 1-1
Chapter 1 Section 1 Earth's interior
Term | Definition |
---|---|
Geologist | A scientist who studies the forces that make up the Earth. |
Rock | The material that forms Earth's hard surface. |
geology | The study of planet Earth. |
Constructive forces | shapes Earth's surface by building up mountains and land masses. |
Destructive forces | destroys and wears away landmasses through a process like erosion and weathering. |
Continent | one of Earth's 7 large land masses. |
seismic wave | a ground vibration produced from an earthquake. |
pressure | the force pushing on a surface or area. |
crust | the outmost 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 the 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 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. |