Ages 5+
Ages 5+
Powerful Pumps
Build an air pump and use it to inflate balloons, discover two types of one-way valves, see how displacement is used to engineer a working water pump, and convert your water pump into a car wash.
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Reviews
5.0
1 review
mspw
02/28/2022
Of all the kiwi boxes building up in our closet, this was the one my daughter (8) wanted to do first. She loves balloons and water. ;) She was a little disappointed that "balloon art" meant stickers and faces, but she had a blast making her pumps, and coloring and washing her car. Looking forward to putting the pump in the bath for more fun...
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