5 Sci Ch 7 Test 7
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| 78% | percent of nitrogen in the earth's air
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| 93,000,000 miles | How far away is the sun?
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| air pressure | the pressure of atmospheric or compressed air; the total weight of air on some particular place on earth
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| 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
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| atmosphere | the layer of gases surrounding a planet or moon;
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| aurora | light display seen near the poles caused by the collisions of particles from the solar wind with molecules of air
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| aurora borealis | the northern lights
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| chromosphere | the sun's atmosphere that has a colorful layer of gases that surrounds the sun's photosphere; visible only through a monochromator
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| core | innermost section of the sun
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| 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
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| crescent | the first phase after a new moon
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| Earth | only planet suitable for life.
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| exosphere | topmost layer of the earth's atmosphere
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| gibbous | bulging
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| 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
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| Jupiter | largest planet with the big red spot
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| 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
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| magnetic | earth is surrounded by this field that protects it from harmful space particles
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| Mars | the red planet.
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| Mercury | planet closest to the sun
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| mesosphere | meteoroids burn up in this layer
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| meteoroids | small solid pieces of rocky debris traveling through space; many meteoroids are fragments broken off asteroids
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| Neptune | royal blue planet where the wind blows hardest. It has a moon named Triton.
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| nitrogen | 78% of the air is made of this gas
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| 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
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| ozone layaer | layer in the stratosphere that helps protect the earth from ultraviolet rays
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| photosphere | sphere of light; the surface layer of the sun; the layer visible to the observer on Earthni
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| rareified | scarce; thin and less dense
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| Saturn | planet with 7 rings and over 60 moons
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| solar eclipse | the blocking out of the sun's light that occurs when the moon comes between the sun and the earth
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| solar wind | a steady stream of subatomic particles speeding outward from the sun and through space at a million miles per hour
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| sun | where the light of the moon comes from
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| sunspots | darker areas on the outer surface of the sun
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| troposphere | Layer of Earths's atmosphere closest to the Earth where weather occurs
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| Uranus | the first planet discovered in modern times. It was discovered by Sir Wm Herschel. It rotates on it's side.
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| Venus | Earth's twin and brightest planet in the sky
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| Where do sunspots occur? | on the photosphere
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To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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