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13 Cards in this Set
- Front
- Back
phases |
the different shapes of the moon seen from Earth |
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eclipse |
when the moon's shadow directly hits Earth or the Earth's shadow directly hits the moon |
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solar eclipse |
when the moon passes directly between Earth and the sun |
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umbra |
the darkest part of a moon's shadow |
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penumbra |
the larger part of the moon's shadow, it is not as dark as the umbra |
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lunar eclipse |
when Earth is directly between the moon and the sun |
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tide |
the rise and fall of ocean water |
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spring tide |
when the sun, the moon, and Earth line up, a spring tide occurs |
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neap tide |
when the sun's pull is at right angles with the moon's pull, a neap tide occurs |
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telescope |
a device built to observe distant objects by making them appear closer |
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maria |
dark, flat areas on the moon's surface |
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craters |
round pits that mark the moon's surface |
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meteoroids |
chunks of rock or dust from space |