Toys from Trash – Cup Centrifuge

A centrifuge is a machine with a rapidly rotating container that applies a force known as centrifugal force to its contents, usually to separate fluids of different densities (for example, to seperate cream from milk) or liquids from solids.

Watch the video to get a better idea of how this works, and also make your own!

Materials needed: Two plastic cups, two plastic balls, glue and a pencil.