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16 Cards in this Set
- Front
- Back
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phases |
the different forms the Moon takes in its appearancefrom Earth; sequence of phases is the lunar cycle lasting 29.5 days |
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new moon |
when the moon is between Earth and Sun and can’tbe seen |
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Waxing Phases |
more of the moon’s near side is lit each night |
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waxing crescent |
first visible thin slice of moon |
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first quarter |
half the lighted side of moon is visible |
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waxing gibbous |
more than one quarter is visible |
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full moon |
all the moon’s lighted side is visible |
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Waning Phases |
less of the illuminated half of Moon is visibleafter a full moon |
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waning gibbous |
starts after a full moon when more thanhalf of lit side of moon is still visible |
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third quarter |
only half the moon’s lighted side is visible |
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waning crescent |
last visible slice before a new moon |
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eclipse |
when Earth or the Moon casts a shadow on the other |
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lunar eclipse |
occurs when the Moon moves into Earth’s shadow |
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maria |
dark, flat areas formed from lava 3-4 billion years ago |
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crater |
large, round pits caused by impacts of meteoroids |
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highlands |
oldest, most highly-cratered regions on the Moon |
