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9
Science
8th Grade
10/10/2012

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Cards

Term
what is collision theory?
Definition
4.5 million years ago, a object the size of a planet collided with earth. it hit off the center or angle
Term
object that crashed and took pictures of the moon
Definition
Luna 1
Term
first object in space
Definition
Sputnik
Term
First man to space
Definition
John glenn
Term
apogee
Definition
farthest away
Term
perigee
Definition
closest
Term
how many tides are there?
Definition
2 high 2 low = 4
Term
Highlands
Definition
oldest rock
Term
Maria
Definition
Youngest rock
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