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9 Cards in this Set
- Front
- Back
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phases
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One of the different apparent shapes of the moon as seen from Earth.
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solar eclipse
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The blocking of sunlight to Earth that occurs when the moon is directly between the sun and Earth.
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lunar eclipse
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The blocking of sunlight to the moon that occurs when Earth is directly between the sun and the moon.
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umbra
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The darkest part of a shadow.
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penumbra
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The part of a shadow surrounding the darkest part.
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eclipse
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The partial or total blocking of one object in space by another.
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tide
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The periodic rise and fall of the level of water in the ocean.
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spring tide
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The tide with the greatest difference between consecutive low and high tides.
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neap tide
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The tide with the least difference between consecutive low and high tides.
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