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Astronomy
rotation, revolution,seasons
7
Science
6th Grade
12/20/2011

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Cards

Term
axis
Definition
an imaginary line through the center of an object on which it spins
Term
Period of revolution
Definition
the amount of time it take for an object to travel around another object
Term
matter
Definition
anything that has mass and takes up space (volume)
Term
Tide
Definition
The rise and fall of the ocean surface due to the gravitational pull of the moon
Term
neap tide
Definition
when the moon and Sun's gravitational pull work against each other to minimize the tides
Term
spring tide
Definition
when the moon and Sun's gravitational pull work together to maximize the tides causing higher high tides and lower low tides
Term
rotation
Definition
the spinning of an object on its axis (causes day and night)
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