US$ 29.99
Sodium chloride lattice kit with 27 color-coded gray and green atoms plus 54 connectors for building the full cubic NaCl crystal structure in three dimensions
supporting inclusive anatomy teaching in biology classrooms
75-inch aluminum-and-steel frame for mass-comparison work
Autoclavable polypropylene test tube stand holding six 25-mm tubes with six drying pins on the back
and four lenses for focal-length investigations
13-Piece Steel Tuning Fork Set in Wooden Case Subcategory_Globes Sodium chloride lattice kit withThirteen nickel plated steel forks spanning C 236Hz to C 512Hz at + 5% accuracy, each plain shanked for clamping or holding, supplied in a wooden case for full classroom harmonic investigations.
US$ 29.99
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US$ 107.50