Magical inflating balloons

One of the first things a little scientist should learn is that heat causes things to expand (get bigger) and cold causes things to contract (get smaller). Things such as air will contract and take up less room when cooled. Similarly, things will expand when they get hot. If you don’t believe this, carefully observe Dad’s head the next time you break one of his expensive tools (Reeko tip – observe from a distance). Ok, so Reeko’s gonna save you some heartache. Rather than test this by breaking one of Dad’s tools, let’s try the following experiment instead.

Magical inflating balloons