3m Wave Form Helix Spring for Wave Motion Demonstration Science at Home_Chemical Science Four-cylinder equal-mass set at 100g

Four-cylinder equal-mass set at 100g each in copper

this eight-fork steel set lets students hear and measure frequency

Thirty-atom organic chemistry model set with 24 short and long bonds

Compact 14 by 12 by 11 cm autoclavable polypropylene basket organizes test tubes during experiments

Hook-topped for easy suspension

3m Wave Form Helix Spring for Wave Motion Demonstration Science at Home_Chemical Science Four-cylinder equal-mass set at 100gClosing to 3m and extending to 9m, this 20mm diameter steel helix carries longitudinal, transverse, and standing waves visibly enough to compare amplitude, frequency, and S wave vs P wave behavior.