Make a hull out of a milk or juice carton for your pop pop engine. Cardboard beverage cartons are waterproof, easy to cut and bend and take paint well.
Go to sciencetoymaker.org for directions to make the pop pop steam engine and for many other DIY science projects.Make a hull out of a milk or juice carton for your pop pop engine. Cardboard beverage cartons are waterproof, easy to cut and bend and take ...all »Make a hull out of a milk or juice carton for your pop pop engine. Cardboard beverage cartons are waterproof, easy to cut and bend and take paint well.
Go to sciencetoymaker.org for directions to make the pop pop steam engine and for many other DIY science projects.«
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