Many of the actual chemicals in flower petals that give them their different colors are called anthocyanins. These are water-soluble compounds that belong to a bigger class of chemicals known as flavonoids. Anthocyanins are responsible for creating the colors blue, red, pink, and purple in flowers.
Nothing happens to these particles when it comes to size however if it were to be speed, the sample would increase. Fact: The size of a particle will never change!
