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Question:

How does plastic wrap insulate food? How does paper towels? How does aluminum/tin foil?

I just need to knowI already learned about the 3 types of heating, radiation, conduction, and convectionI know it must be something about the materials and how the molecules blah blahPlease explainI'm tired for itSomeone must know something!

Answer:

You may want to discreetly ask around your household and see if a centerpiece butt will go over well.
Spray starch.laundry aisle at any store!
Aleene's? Fabric Stiffener Go to a craft store and buy a product specifically designed to harden fabrics, not starch or hairsprayif you apply to much pressure to a fabric hardened with hairspray, it will crease and loose its shapeI would also double check even with Aleene's on whether it will stand up to water (for floating candles.)
Use PVA glue - it looks white, but when it dries - it's clear and not visible, so you can really apply a lot of it to make it stiffBetter be done one layer after another, not the big amount of glue straight awayLet one layer dry first, then repeat.
Plastic wrap and aluminum foil don't insulate food to any noticeable degree, they're simply too thin to stop heat tranferWhat they do is trap both air and moisture insideThe air provides some insulation, since heat must tranfer from the food to the air inside the wrap, then transfer to the wrap itself before it radiates awayAlso, evaporation cools the food, so by trapping moisture inside, you can minimize evaporation and therefore coolingPaper towels to the same thing, but much less effectivelyBoth air and moisture can pass through the towel, allowing the food to coolAll it really does is slow down the convection process by slowing the movement of air.

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