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inside earth 1-1
ch1 section 1 earths interior
Term | Definition |
---|---|
geologist | A scientist who studies the forces that make and shape planet Earth. |
rock | The material that forms Earth’s hard surface. |
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 wave | 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 | The outermost layer of solid rock that includes both dry land and the ocean floor. The thinnest layer of the Earth |
granite | A dark, dense, igneous rock, found in oceanic 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. |