Low-Level Peroxide Test Strips, 0-100ppm, 50-Vial Physics_Waves & Oscillation and 3 rods for multi-configuration

and 3 rods for multi-configuration study

relating photon frequency to the kinetic energy of emitted electrons for quantum physics investigations

5-inch female pelvis model demonstrates 9-month pregnancy anatomy and fetal positioning before delivery for obstetrics teaching

Tirrill burner on a stable octagonal base adds air

this Wimshurst generator builds a visible high-voltage spark

Low-Level Peroxide Test Strips, 0-100ppm, 50-Vial Physics_Waves & Oscillation and 3 rods for multi-configurationLow level peroxide test strips in a 50 strip vial calibrated at 0, 1, 3, 10, 50, and 100 ppm, supporting semi quantitative hydroperoxide and ether peroxide monitoring in the lab.