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34 Cards in this Set
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Sphere of light; the surface layer of the sun; the layer visible to the observer on Earth |
photosphere |
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a colorful layer of gases that surrounds the sun's photosphere; visible only through a monochromator |
chromosphere |
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a vapor blanket that surrounds the chromosphere and extends about 249,000 miles from the surface of the sun; visible only during a total solar eclipse |
corona |
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the blocking out of the sun;s light that occurs when the moon comes between the sun and the earth |
solar eclipse |
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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 |
lunar eclipse |
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the pressure of atmospheric or compressed air; the total weight of air on some particular place on earth |
air pressure |
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the layer of gases surrounding a planet or moon; Earth's atmosphere is made up of a mixture of gases called air |
atmosphere |
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a form of oxygen with three atoms of oxygen in its molecule instead of the two atoms found in molecules of normal oxygen gas |
ozone |
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a light visible on the horizon on especially dark and clear nights; cast by ions created when solar rays strip electrons from atoms of gases in the upper amosphere |
airglow |
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small solid pieces of rocky debris traveling through space; many meteoroids are fragments broken off asteroids |
meteoroids |
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an atom that is either positively charged because it has lost some or all of its electrons, or negatively charged because it has picked up one or more extra electrons |
ion |
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a steady stream of subatomic particles speeding outward from the sun and through space at a million miles per hour |
solar winds |
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the northern lights |
aurora borealis |
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the southern lights |
aurora australis |
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When is the corona visible? |
during a solar eclipse
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How far away is the sun? |
93,000,000 miles |
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What percent of the air is oxygen? |
21% |
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Which layer of Earth's atmosphere is the only place where weather occurs? |
troposphere |
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Where do sunspots occur? |
on the photosphere |
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What do we call the first phase after a new moon? |
crescent |
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Where do meteoroids burn up? |
mesosphere |
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Which planet was the first one discovered in modern times? |
Uranus |
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Although in size I'm number one, I'm sill the fifth worlds from the sun. |
Jupiter |
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I am Earth's bright twin, some people say; but on me you would not want to stay. |
Venus |
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With seven rings around my girth, I'm three planets from the earth. |
Saturn |
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Winds blow about me strong and fast; in line I am the very last. |
Neptune |
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I'm the world you know the best, for on me is life, unlike the rest. |
Earth |
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As twenty-seven moons around me fly, upon my side I always lie. |
Uranus |
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Life on me would be no fun, for I'm the closest to the sun. |
Mercury |
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I'm the red on shining bright; no life on me, at day or night. |
Mars |
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When the Browns moved to the country, they were looking forward to dark nights away from all the city lights. They were disappointed one moonless night, when they saw a strange, faint light across the horizon. The Browns thought they could still see the lights from the city. what did they actually see? |
airglow |
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Lori and Tim won a free ride in a hot air balloon. On the afternoon of the ride, Lori bought a picnic lunch. Tim brought oxygen masks. "We might need them," he said. What did Tim learn in science that would make hi think about bringing oxygen? |
that air would be thinner the higher he went into the atmosphere |
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Tribal people in New Guinea thought the world was coming to an end when one day the moon hid the sun from their view. What do you think happened? |
A solar eclipse occurred. |
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Maria loved to watch the Southern Cross from her window in Lima, Peru. When she moved to Nebraska, she could not wait to view her favorite constellation from her new home. Why was she surprised when she looked up in the sky? |
The Southern Cross is visible only in the Southern Hemisphere. Nebraska is in the Northern Hemisphere.
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