Let's make soap!

How to make soap

In ancient Babylon, Egypt, Greece, and Rome, soap was being made by boiling animal fats and wood ashes in water. This practice was probably imported to Europe around the 6th century BC by the Phoenicians, merchants who used soap to wash the fabrics they traded for other goods.

Extracting Fall’s Colors

Fall shows us 'the other' colors of leaves. Hidden behind chlorophyll, the pervading green pigment of summer leaves, these colors begin to turn as autumn approaches. In this experiment, you will set out to uncover the leaves’ other pigments. To do so, you will apply a technique to separate substances called chromatography.

Light, colors, and heat

Have you ever noticed how people wear light colors in summer and darker clothes in winter? It’s not only to do with fashion: science also has its say.