How does a rainbow of colors turn white? Clearly demonstrate that white light is composed of all the colors of the rainbow. This 23-cm diameter sturdy plastic color wheel comes with a plastic handle that attaches to the center of the wheel. Start the wheel spinning with the included cord and students see white—a combination of all the reflected colors. Stop the wheel and the separate colors are once again seen. The white portions of the wheel increase the amount of reflected light for better viewing across the classroom. Includes Teacher’s Guide with sample questions.