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Spelling for Test, December 10

Teacher: Mrs. S. Vandervort
Across
an atmospheric phenomenon consisting of bands, curtains, or streamers of light, usually green, red, or yellow, that move across the sky in polar regions. It is caused by collisions between air molecules and charged particles from the sun that are trapped in the earth's magnetic field
Found in the upper limits of the homosphere where there is a relatively scarce type of oxygen molecule in which three oxygen atoms are bonded together
A special state of matter made up of a mixture of electrons and positive ions
the highest region of the atmosphere, where the air density is so low that a fast-moving air molecule is more than 50 percent likely to escape from the atmosphere instead of hitting other molecules.
Amount of energy that something gains
Down
a large-scale, atmospheric wind-and-pressure system characterized by low pressure at its center and by circular wind motion, counterclockwise in the Northern Hemisphere, clockwise in the Southern Hemisphere.
the outer region of the earth's ionosphere, where the earth's magnetic field controls the motion of charged particles, as in the Van Allen belts.
the region of the earth's atmosphere between the stratosphere and the exosphere, consisting of several ionized layers and extending from about 50 to 250 miles (80 to 400 km) above the surface of the earth.
An inactive or dull zone where ships are often left without wind
Solar energy that does not reach the surface of the earth