Glass Prism

Humans have been fascinated with prismatic effects since they saw the first rainbow. Over three hundred years ago, Sir Isaac Newton concluded that a prism separates white light into red, orange, yellow, green, blue, indigo, and violet. Children can set this glass prism in a sunny window or take it outside in the sunlight to see for themselves what Newton was talking about — a beam of light split into a rainbow. 3" x 1" x 1".