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37 terms

5 Science Chapter 7

STUDY
PLAY
photosphere
sphere of light; the surface layer of the sun; the layer visible to the observer on Earthni
chromosphere
the sun's atmosphere that has a colorful layer of gases that surrounds the sun's photosphere; visible only through a monochromator
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
solar eclipse
the blocking out of the sun's light that occurs when the moon comes between the sun and the earth
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
air pressure
the pressure of atmospheric or compressed air; the total weight of air on some particular place on earth
atmosphere
the layer of gases surrounding a planet or moon;
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
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
meteoroids
small solid pieces of rocky debris traveling through space; many meteoroids are fragments broken off asteroids
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
solar wind
a steady stream of subatomic particles speeding outward from the sun and through space at a million miles per hour
aurora
light display seen near the poles caused by the collisions of particles from the solar wind with molecules of air
93,000,000 miles
How far away is the sun?
troposphere
Layer of Earths's atmosphere closest to the Earth where weather occurs
Where do sunspots occur?
on the photosphere
crescent
the first phase after a new moon
mesosphere
meteoroids burn up in this layer
Uranus
the first planet discovered in modern times. It was discovered by Sir Wm Herschel. It rotates on it's side.
Jupiter
largest planet with the big red spot
Venus
Earth's twin and brightest planet in the sky
Saturn
planet with 7 rings and over 60 moons
Neptune
royal blue planet where the wind blows hardest. It has a moon named Triton.
Earth
only planet suitable for life.
Mercury
planet closest to the sun
Mars
the red planet.
core
innermost section of the sun
sunspots
darker areas on the outer surface of the sun
sun
where the light of the moon comes from
gibbous
bulging
nitrogen
78% of the air is made of this gas
ozone layaer
layer in the stratosphere that helps protect the earth from ultraviolet rays
exosphere
topmost layer of the earth's atmosphere
rareified
scarce; thin and less dense
magnetic
earth is surrounded by this field that protects it from harmful space particles
aurora borealis
the northern lights
78%
percent of nitrogen in the earth's air