Balloons are today's topic! Aren't they happy and zappy and bright? Balloons are really cool and really useful, used in meteorology, military defense and transportation, but I'll mostly be using pictures of happy rubber balloons.
Balloons can really brighten things up, can't they? They were most likely invented as a side effect of experiments to do with gases by Michael Faraday in 1824, and early balloons were made out of pig bladders!! Modern balloons are made of Latex which is apparently a vegetable.
The bang made when a balloon bursts is actually the sound of the latex popping back to it's pre-inflated size at the speed of sound.
In conclusion balloons are very pretty and colourful.