Okay, I need to make a thermos out of aluminum foil, cotton, bubble wrap, foam cups, plastic cups, and foam balls for school, and I'm not allowed to use anything elseAnyone have a recipe for doing this?
they are the pontoonsthus the name pontoon boat
Put the liquid in the small cup (foam hopefullyWrap the small cup in foil shiney side inNow place into the large cupYou need to isolate the inner cup from the outer cup to create an insulation gaPFoam balls, cotton and bubble wrap are all good insulatorsExperiment with wadding the cavity between the cups or just fresh air For good measure wrap the outer cup with insulation.
