Science Week Assembly – why didn’t the balloon pop?

More Science fun. Two identical balloons, one flame, two different results. What’s going on?

The first balloon contains air so when it’s heated, the plastic of the balloon heats up and begins to melt slightly, which creates a weak spot, so the balloon pops.

The second balloon has water in it, which keeps the outside of the balloon cool. Cool outside = no melting = no weak spot = no pop!

Leave a Reply