Discover what FDA's red dye ban means for your food safety. Learn which synthetic colors remain in your favorite foods and their potential health risks.

You can use a prism to split (or disperse) white light into a spectrum of colours: red, orange, yellow, green, blue, indigo and violet. Dispersed means that the colours are separated out.

Both rubies and emeralds are minerals, which is a type of rock with a consistent chemical composition and a highly ordered ...