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Step 5Time to launch rockets!
Put some water in the bottle, put the adapter in, attach the bike pump to the valve, turn the bottle upside down, lean it against something, and pump away!
From here you can play with how much water to put in, make a stand for the bottles, put fins and nosecones on, strapped stuffed animals on and fire them off, etc.
From here you can play with how much water to put in, make a stand for the bottles, put fins and nosecones on, strapped stuffed animals on and fire them off, etc.
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