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SBALL18
Polished, hardened spheres for mechanics and magnetism experiments.
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From $0.79 /unit
Electric Generator, Hand Cranked With Clear Shell, Educational
Clear shell generator for educational demonstrations, hand-cranked.
Fine Iron Filings, 8 Oz, 1/2 Pound, 227 grams
3D magnetic field experimentation with safe-keeping screw cap.
Uv Sensitive Beads (Assorted Colors, 150 Beads)
Color-changing beads detect UV light and test UV products.
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