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study:guideearth/moon
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17
Science
8th Grade
02/15/2012
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Term
[image]
 Definition
solar eclipse
Term
[image]
 Definition
moon cycle takes 27.3 days and the revolution takes 29.5 days
Term
[image]
 Definition
lunar eclipse
Term
umbra
 Definition
portion of the shadow where a total eclipse is experienced
Term
penumbra
 Definition
portion of the shadow where a partial eclipse is experienced
Term
[image]
 Definition
Third quarter
Term
[image]
 Definition
First quarter
Term
[image]
 Definition
new moon
Term
[image]
 Definition

waning crescent

 
Term
[image]
 Definition
waxing crescent
Term
[image]
 Definition
waning gibbous
Term
[image]
 Definition
waxing gibbous
Term
rotation
 Definition

the spinning of the earth on its axis which causes day and night

-takes 24 hours
Term
revolution
 Definition
Earth's year long elliptical orbit around the sun
Term
sphere
 Definition
 a round 3-dimensional object
Term
axis
 Definition
imaginary vertical line around which the earth spins
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