Ray: How Light Works

The dazzling Ray illuminates how light works—part of the Science Pals series, including Drop: An Adventure through the Water Cycle and Puff: All About Air

Meet Ray. He's light! And he's been shining since time began. Wherever there's life on Earth, there's Ray, helping everything under the sun thrive. And Ray can really move—fast. Have you ever hurtled through space? Become a rainbow? Made food for plants? Ray has! With brilliant wit and sparkling one-liners, Ray introduces readers to a ligh...