8-Piece Aluminum Scientific Tuning Fork Set with Wooden Case Pack Size_50 holding volume constant across specimens

holding volume constant across specimens for isolated density comparisons

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

Aluminum inclined plane with integrated vertical

delivering wheel-driven power to a lamp or a Newton color disc

electromagnet coil

8-Piece Aluminum Scientific Tuning Fork Set with Wooden Case Pack Size_50 holding volume constant across specimensEight aluminum shank tuning forks tuned to scientific pitch (C4 = 256Hz) and ranging from 5 9 16 to 7 1 8 inches, each foam protected in a wooden case with frequencies labeled.