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Our Earth & Its Moon

Matter & Motion in God's Universe

TermDefinition
satellites objects that revolve around another object
craters a bowl shaped cavity on the surface of a planet, moon, asteroid or meteroid
maria seas; plains on the moon
lunar month the time it takes for the moon to revolve around the earth; 29 days, 12 hours, and 44 minutes
rilles crevices or trenches found on the lunar surface
new moon the invisible moon; occurs when the sunlit side of the moon is turned directly away form the earth; the beginning of a new lunar month
waxes grows larger
wane shrinks
first-quarter moon the phase of the waxing moon in which half the lighted part is visible
crescent phase the phase of the moon when less than one half of its lighted portion is visible
full moon the phase of the moon in which all its lighted part is visible; occurs when the sunlit side of the moon is turned directly toward the earth
gibbous phase the phase of the moon in which over half but not quite all of its lighted portion is visible
third-quarter moon the phase of the waning moon in which half of its lighted portion is visible
solar eclipse the blocking of the sun's light that occurs when the moon comes between the sun and the earth
lunar eclipse the obscuring of the moon that occurs when the earth comes between it and the sun: the moon is temporarily darkened as it passes through the earth's shadow
high tide ocean rises or moves up the shore until it reaches its highest point
low tide ocean falls or moves away from the shore until it reaches its lowest point
spring tide occur twice in a lunar month, once during new moon and once during full moon
neap tide occur when there is a first-quarter moon or a third-quarter moon
first phase of the moon new moon
second phase of the moon crescent waxing
third phase of the moon first quarter
forth phase of the moon gibbous waxing
fifth phase of the moon full moon
sixth phase of the moon gibbous waning
seventh phase of the moon third quarter
eighth phase of the moon crescent waning
Created by: nike50001
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