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science 22-2
moon phases
| word | Definition |
|---|---|
| moon phases | the changes in appearance of the moon as it orbits earth every 29-1/2 days |
| new moon | the moon phase when the side facing earth is complletly dark, because the moon is between earth and the sun. |
| waxing | describes the moon as its visible lightened area grows larger during the lunar circle. |
| first quarter | the moon phase halfway between new moon and full moon |
| full moon | the moon phase when the side facing earth is completely lighted |
| waning | describes the moon as its visible lighted area grows smaller during the lunar cycle |
| thrid quarter | the moon phase halfway between full moon and new moon |
| solar eclipse | the passing of the moon dsirectly between earth and the sun. |
| lunar eclipse | the passing of earth between the sun and moon. |
| maria | dark,flat rregions of ancient lava on the moon |