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Astronomy vocab part 1
new as can be
6
Science
6th Grade
01/14/2009
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Term
Astronomy
 Definition
is the study of all physical objects beyond the Earth.
Term
Calender
 Definition
is a system for organizing time.
Term
Year
 Definition
is the time required for the earth to rotate around the sun.
Term
month
 Definition
is roughly the amount of time required for the moon to orbit the Earth once.
Term
Day
 Definition
is the time required for the Earth to rotate once on its axis.
Term
Leap Year
 Definition
This is the extra day added to the calender every four years.
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