Mylar vs. Latex Balloons
There are two main types of decorative balloons: Mylar® (a shiny, foil-like plastic made of polyester) or latex (a flexible material made from liquid rubber). Which one lasts longer? Why?
Problem:
Which type of balloon lasts longer: Mylar® or latex?
Materials: Three Mylar® balloons Three latex balloons Helium tank to …