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Drinking Bird
Simply moisten the bird's head with water, place it next to a full glass of water and watch as the bird periodically dunks its head into the glass for a "drink."
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Hand Boiler
These incredible devices, perfect for teaching about thermal energy, are sold individually and in cases of 12 for your entire class.
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Smashing! Steel Sphere Demo Kit
When these spheres are smashed together, enough heat is generated at the point of contact to burn a hole in a piece of ordinary paper!
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