8-Piece Aluminum Scientific Tuning Fork Set with Wooden Case Physics_Waves & Oscillation Food-grade peroxide test strips in

Food-grade peroxide test strips in a 50-strip vial calibrated for the 3 to 10 percent concentration range

Drops a dense object and a feather together inside a 20-inch evacuated glass tube

Four-times enlarged premium ear model with five separable sections exposes detailed outer

and aluminum at a shared 0

Entry-level two-part human skull model separates the skull cap to reveal the cranial cavity for introductory head-anatomy teaching at secondary and college levels

8-Piece Aluminum Scientific Tuning Fork Set with Wooden Case Physics_Waves & Oscillation Food-grade peroxide test strips inEight 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.