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10 Cards in this Set
- Front
- Back
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friction
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the rubbing of one object or suface against another that causes resistance to motion
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varible
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something that you can change the result of an experiment
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control
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element (s) of an experiment that stay the same
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rotation
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to turn or spin around an axis
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revolution
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a complete circle made by a planet around the sun
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lunar
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moon
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evidence
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imformation gained from direct observatin that can be used to formulate ideas
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trait
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a genetic charicteristic
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classification
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grouping by catagories
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gravity
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the natural force that causes objects to move toward the center of the earth
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