"live microorganism"
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Rive Ray Box
High quality and low cost make this ideally suited for junior high or high school students.
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Mysterious Magnet Tube with Steel Filings
Explore beautiful 3-D patterns created by a magnetic field mess free.
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United Scientific Laser Line Generator
Project a straight line for mirrors and lenses.
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Ray Optics Kit
Economical kit for ray optics experiments and demonstrations.
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