MATERIALS NEEDED plastic dry cleaning bag hair dryer

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STEPS TO FOLLOW:

Open the bag and fill with air by pulling it quickly through the air around you. Close off the bag with your hand, but leave a small opening. Insert the hair dryer through the opening.

Heat the air in the bag with the hair dryer for a few minutes. Observe. (The bag rises.)

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Last modified: Tue Mar 24 18:42:55 PST 1998

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