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12 Cards in this Set
- Front
- Back
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ROTATION
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the earth's spinning on it's axis causes day and night; takes 24 hours
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REVOLUTION
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the ORBIT (revolving) of the earth around the sun; takes 365 1/4 days
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SEASONS
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these are created by the TILT of the sun
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SUN
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a big ball of gas; the center of our solar system
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PHOTOSPHERE
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this part of the the sun gives off the light we see
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SOLAR WIND
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WINDS that come off the sun
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SUNSPOT
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a SPOT on the sun that is cooler than the rest of the sun's surface
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PROMINENCE
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an ARCH of gas that rises from the suns surface
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SOLAR FLARE
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gas that SHOOTS out into the atmosphere
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COPERNICUS
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discovered that the sun is the center of our universe
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INNER PLANETS
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these are rockier and smaller in size than the rest of the planets
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OUTER PLANETS
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these have slower revolutions and are farther apart than the rest of the planets
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