Begin by taking a plastic glove and cutting off one of its fingers. The glove will act as a container for the vinegar, which ...

2. Carefully poke the pointy end of the skewer into the centre of the dark spot on top of the balloon. Do this carefully – you need to overcome your fear of the balloon popping and press fairly ...

Cracker question because helium balloons are actually a pretty controversial topic. Some people argue that they are harmful to the environment because on returning to Earth, animals mistake them ...

Production of carbon dioxide from reaction of citric acid and baking soda ...