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14 Cards in this Set
- Front
- Back
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waxing
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To increase gradually in size. The illuminated part of the moon is getting bigger.
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waning
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To decrease gradually in size. The illuminated part of the moon is becoming smaller
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gibbous
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More than half, but less than fully illuminated (reflecting light)
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crescent
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Having concave and convex edges terminating in points
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full moon
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Fully illuminated
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new moon
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The moon’s unilluminated side is facing the Earth
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quarter
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One-half of the Moon (facing the Earth) appears to be illuminated.
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maria
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Large dark areas on the moon
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Crater
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A bowl-shaped depression in a surface
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Satellite
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A celestial body that orbits a planet
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Orbit
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To revolve around something
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Gravity
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The natural force of attraction exerted by a celestial body
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Eclipse
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One celestial body is blocked out by another.
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Tide
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The rise and fall of the surface level of the oceans, bays, gulfs, inlets, and estuaries, caused by gravitational attraction of the moon & sun
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