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10 Cards in this Set
- Front
- Back
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The term ... is the percentage of sunlight that is reflected from the earth
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albedo
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In 1908 a meteorite struck Tunguska, ...
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Siberia
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Dust from a meteorite enabled people to read the paper at midnight in Europe. This phenomenon was called the ...
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White Night
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The gradual growth of planets by collision and sticking is known as ...
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Planetary accretion
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All the atoms in your body originated in a(n)...
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star
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How old is the Universe?
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13.7 billion years
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Who discovered that the farther away a galaxy from earth, the faster it is moving
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Hubble
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Other than our Sun, what is the closest star to the Earth?
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Proxima centauri
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What is the chemical equation for ozone?
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O3
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What element is responsible for destroying ozone molecules?
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Chlorine
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