Why does ice float?

This question was asked by Jacqui from West Sussex, UK.  If you drop an ice cube into a glass of…

NASA: there is water on Mars

Until 3 billion years ago, Mars was a wet planet much like our own. It had land, an extensive atmosphere…

What are chemicals?

This question was asked by Elizabeth from West Sussex, UK.    Chemicals are everywhere. Everything made of matter (anything you…

The science of cake

Baking’s great – you combine a few ingredients, add heat and end up with something tasty. But did you know…