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10 Cards in this Set
- Front
- Back
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astronautes
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people who travel to space
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gravity
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the force THAT PULLS THINGS DOWN
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CELLS
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containers
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lunar
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having to do with the moon
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conserve
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to save
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oxygen
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a gas found in air
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transmission
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a brodcast
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valve
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a movable part that controls the flow
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venting
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releasing
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commander
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leader
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