How does sugar preserve food?

This question was asked by Mary from East Sussex, UK.  Humans have used sugar to preserve food for thousands of…

Does sugar make children hyperactive?

It’s accepted wisdom that consuming too much sugar will make children hyperactive, and many parents will tell you of occasions…

Space lettuce!

If you want a fresh salad you might take a trip to the shop, or maybe to your allotment. But…

The science of cake

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