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New Supplies

pillows (4-6)
rope (4-6) 6 ft long
painters tape
blanket (2)
poster board

Paper clips (12)
sugar
Wood sticks (12)
Food coloring (1 pack)
Tray (4)
Basin (4)
Hand lens
Stop Watches. (4)

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Why can't air push through when there is no air in the other balloon?

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What would happen if we added more air to the smaller balloon?

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Balloon pressure - more pressure, less pressure?

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We wonder why most of the air was transferred into the bigger balloon.

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Noticing  Air is staying out of smaller balloon.

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Noticing  Air is staying out of smaller balloon.

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When we stopped squeezing the balloon, the air started to go back into the large balloon. We wonder why that happened?

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If volume was the same would balloons stay equal?

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Our big balloon got bigger. Our small balloon got smaller.

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When we squeeze the balloons, the air will move from one to the other, as long as the valve is open.

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Looked like smaller balloon got a little smaller but mostly balloons stayed the same.

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We wonder why the air didn't move from the large balloon to the small balloon?

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One will deflate. The bigger will survive.

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Which way will the air flow based on force?

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What happens if you turn the valve back to "start"?

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Does the valve move in one direction or both?

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Balloons will equalize.

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Large balloon will pop

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Does the speed of the valve change the outcome?

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The bigger balloon's air will flow into the smaller
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Prediction: the balloons will become the same size due to the transference of molecules when the valve is turned.

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Prediction: the balloons will become the same size due to the transference of molecules when the valve is turned.

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How will the air transfer from one balloon to the other?  

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How will the air transfer from one balloon to the other?  

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All of the air transferred to one balloon. We later noticed that there is a small hole at the neck of the deflated balloon.

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Air will move from one balloon to the other so that the balloons will be the same size.

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The air will move from the larger balloon to the smaller balloon and make them equal sizes

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-Will the air equalize?
-Where will the air go and will it pop the balloons off the valve
-Does it matter which way we turn the valve?

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-small balloon will give all the air to the large balloon

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Will the air transfer from one to another?

Will the speed of the release valve opening effect the amount of air that is transferred?

Noticed: Air released from smaller to larger. Pressure to smaller makes it get even smaller. Pressure to larger only transfers a small amount of air, at a different rate.

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Volume has an inverse relationship to pressure

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-The air in the balloon will equalize in both balloons