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5 Sci Ch 7 Test 7

78% percent of nitrogen in the earth's air
93,000,000 miles How far away is the sun?
air pressure the pressure of atmospheric or compressed air; the total weight of air on some particular place on earth
airglow a light visible on the horizon on especially dark and clear nights; cast by ions created when solar rays strip electrons from electrons from atoms of gases in the upper atmosphere
atmosphere the layer of gases surrounding a planet or moon;
aurora light display seen near the poles caused by the collisions of particles from the solar wind with molecules of air
aurora borealis the northern lights
chromosphere the sun's atmosphere that has a colorful layer of gases that surrounds the sun's photosphere; visible only through a monochromator
core innermost section of the sun
corona a vapor blanket that surrounds the chromospheres and extends to about 249,000miles from the surface of the sun; visible only during a total solar eclipse
crescent the first phase after a new moon
Earth only planet suitable for life.
exosphere topmost layer of the earth's atmosphere
gibbous bulging
ion an atom that is either positively charged because it has lost some or all of it electrons, or negatively charged because it has picked up one or more extra electrons
Jupiter largest planet with the big red spot
lunar eclipse the obscuring of the moon that occurs when the earth comes between it and the sun; the moon is temporarily darkened as it passes through the earth's shadow
magnetic earth is surrounded by this field that protects it from harmful space particles
Mars the red planet.
Mercury planet closest to the sun
mesosphere meteoroids burn up in this layer
meteoroids small solid pieces of rocky debris traveling through space; many meteoroids are fragments broken off asteroids
Neptune royal blue planet where the wind blows hardest. It has a moon named Triton.
nitrogen 78% of the air is made of this gas
ozone a form of oxygen with three atoms of oxygen in its molecule instead of the two atoms found in in molecules of normal oxygen gas
ozone layaer layer in the stratosphere that helps protect the earth from ultraviolet rays
photosphere sphere of light; the surface layer of the sun; the layer visible to the observer on Earthni
rareified scarce; thin and less dense
Saturn planet with 7 rings and over 60 moons
solar eclipse the blocking out of the sun's light that occurs when the moon comes between the sun and the earth
solar wind a steady stream of subatomic particles speeding outward from the sun and through space at a million miles per hour
sun where the light of the moon comes from
sunspots darker areas on the outer surface of the sun
troposphere Layer of Earths's atmosphere closest to the Earth where weather occurs
Uranus the first planet discovered in modern times. It was discovered by Sir Wm Herschel. It rotates on it's side.
Venus Earth's twin and brightest planet in the sky
Where do sunspots occur? on the photosphere
Created by: Mrs_CC