Introduces the scientific principles of light and color, including explanations of where light comes from, reflected light, colors in nature, and how the eye works.
Introduces the scientific principles of light and color, including explanations of where light comes from, reflected light, colors in nature, and how the eye works.
Presents one hundred facts about planet Earth, covering fossils, mountains, weather, and other topics, and includes illustrations, puzzles, quizzes, and projects.