Activities to reinforce basic concepts in the study of light and sound, including nature and behavior of light, sources and uses of light, types of lenses, vibration and travel of sound, and characteristics of sound.

"Reproducible pages plus teacher's guide" -- Front cover. "MP3426"--Cover.

Nature of light -- Reflection -- Refraction -- Light, materials, and shadows -- Light and color -- Behavior of light review -- Lenses -- Light and eyesight -- The camera is like the eye -- Law of reflection -- Sources of light -- Energy from sunlight -- Light in technology -- Lenses, eyesight, sources, and uses of light review -- Vibration of sound -- How a sound wave travels -- A medium for sound waves -- Producing and controlling sound -- Different ways of producing sound -- Vibration, sound travel, producing sound review -- Characteristics of pitch. More characteristics of pitch -- Loudness of sound -- More ways to affect loudness -- Characteristics of sound -- Pitch and loudness review -- Sound and hearing -- Using and reproducing sound -- Light and sound background material.