science vocab 1.1
Terms
undefined, object
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- destructive force
- the force that destructs mountains
- seismic wave
- the thing that find objects in the sea by bouncing waves to the object to determin how far the object is
- lithosphere
- 1. the solid portion of the earth (distinguished from atmosphere, hydrosphere).
- crust
- Geology. the outer layer of the earth, about 22 mi. (35 km) deep under the continents and 6 mi. (10 km) deep under the oceans. Compare mantle (def. 3), core1 (def. 10).
- athenosphere
- the region below the lithosphere, variously estimated as being from fifty to several hundred miles (eighty-five to several hundred kilometers) thick, in which the rock is less rigid than that above and below but rigid enough to transmit transverse seismic waves.
- outer core
- the The core of Earth is like a ball of very hot metals. (4000 degrees F. to 9000 the outter part of this_______________
- inner core
- the inner core the middle of the earth
- mantle
- Geology. the portion of the earth, about 1800 mi. (2900 km) thick, between the crust and the core. Compare core1 (def. 10), crust (def. 6).
- constructive force
- the force that builds up mountians
- granite
- a coarse-grained igneous rock composed chiefly of orthoclase and albite feldspars and of quartz, usually with lesser amounts of one or more other minerals, as mica, hornblende, or augite.
- basalt
- A hard, dense, dark volcanic rock composed chiefly of plagioclase, pyroxene, and olivine, and often having a glassy appearance.
- geology
- The scientific study of the origin, history, and structure of the earth.
- geologist
- a person who specializes in geologic research and study.
- pressure
- the exertion of force upon a surface by an object, fluid, etc., in contact with it: the pressure of earth against a wall.