Density Set Polypropylene, Set of 12 Polypropylene cylindrical bars of different length but the same diameter. Students learn that the density of a substance is constant even as itsmass and volume change. Comes in an attractive wooden holder
Banana Plug/Alligator Clip Cord, 12in, Flexible, 18 gauge (SWG) stranded wire cord with a stackable banana plug at one end and an alligator clip at the other end, Alligator clip has a protective vinyl sheath, 3 red, 3 black
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