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17 Cards in this Set
- Front
- Back
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The __ is the most important star to us.
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sun
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The sun and all the heavenly bodies that orbit it make up our __ ___.
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solar system
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The sun is mostly made up of ___ and ____.
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hydrogen and helium
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The surface temperature of the sun is __________; while the core is __________.
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11,000 deg. Fah
27,000,000 deg. Fah |
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The visible part of the sun is the ____.
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photosphere (sphere of light)
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The dark patches on the sun are called ______.
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sunspots
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Why do sunspots look darker than the rest of the surface of the Sun?
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Because they are cooler in temperature.
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What does the movement of the sunspots tell us about the sun.
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The sun is moving.
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Flamelike columns of gas called _______ continually erupt from the photosphere.
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spicules
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The spicules makeup the sun's ______.
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chromosphere
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The chromosphere is only visible during a __ ___.
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solar eclipse
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Spicules are sometimes interrupted by tremendous bursts of energy called __ __.
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solar flares
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What causes solar flares?
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Magnetic stress in the sun
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___ ____ are eruptions of gas off the chromosphere that loop back to the sun.
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Solar pominences
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The ____ is a huge, hot blanket of vapor that surrounds the chromosphere.
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Corona
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What two things are only be seen during a solar eclipse?
1. 2. |
1.chromosphere
2. corona |
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The holes in the corona are the source of the __ ___, which are high-speed streams of charged particles that beat up against the Earth's atmosphere.
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solar winds
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