20-Piece Complete Photogate System Kit Chemical_Copper (II) Acetate demonstrating that evacuated objects fall

demonstrating that evacuated objects fall at the same rate regardless of mass

Triple-range moving-coil DC voltmeter at 0-3V

and educational chemistry apparatus

and geological change for 10 student groups

Hanging half-size skeleton carries color-coded nerve endings extending from the spinal column for combined skeletal and peripheral nervous system teaching

20-Piece Complete Photogate System Kit Chemical_Copper (II) Acetate demonstrating that evacuated objects fallTwenty piece photogate system kit with interrupter plates and an activity guide, timing freefall, air track collisions, rolling object speed, and pendulum periods through infrared beam breaks.