EDU - light and sound

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1y
Light, Sound and Heat
Bring light, sound and heat alive for kids with 10 hands-on and motivating science centers and activities. Study light, sound, heat, refraction, reflection, transparent, translucent, opaque, volume and pitch. Perfect for preschool, kindergarten, or first grade **Affiliate Link
Communicating with Light and Sound
Communicating with Light and Sound - Primary Theme Park