PhysicsQuest Register now for a free kit with everything you need to do four amazing sound experiments. Each kit has a comic book about Spectra, a teacher’s manual with instructions for all four experiments as well as background information, and tons of fun. The number of PhysicsQuest kits are limited and available on a first come, first served basis. Kits will ship this spring. GrabFreebieButton

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Save 40% Off Your First Box at Steve Spangler Science

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