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Planet Earth Vocabulary Quiz

 

Directions: Match the vocabulary words on the left with the definitions on the right.

1. ozone the natural surface features of a tract of land, esp. considered in relation to some use or activity.
2. atmosphere the center part of the Earth.
3. equator the layer of the earth that lies between the crust and the core.
4. rotation the mass of gases surrounding the earth or any other celestial body.
5. mantle the outer portion of the earth or other planet, or of a moon.
6. drought (drouth) to treat (waste products) for reuse or so as to recover reusable materials.
7. core the vast expanse of salt water covering approximately three quarters of the earth's surface.
8. revolution oxygen in the form of molecules with three atoms, created by exposure of oxygen to electrical discharge or ultraviolet radiation, having a sharp smell, and being an effective oxidant for use in bleaching and sterilizing.
9. recycle the imaginary circle around the earth's globe equidistant from both the North and South Poles.
10. erosion a straight line that serves as the unmoving center about which a body or figure turns.
11. terrain an unusually prolonged lack of rain.
12. axis the act of turning on or around an axis.
13. crust the process by which material from the earth's surface is worn away by forces such as glaciers, wind, and waves.
14. ocean orbital motion around a given point.

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