Steel Ball Bearings, 3mm, 50-Pack Heat & Thermodynamics_Temperature & Heat Designed for liquid-fill Snell's-law work

Designed for liquid-fill Snell's-law work at smaller scale

showing the deflection of a current-carrying wire through a fixed magnetic field via 4mm safety sockets

Medium metal displacement vessel at 115 by 90mm with a side spout

anchoring side-by-side magnet-strength comparisons for the classroom

Six-lens optics set of three double-convex and three double-concave glass lenses with ground beveled edges

Steel Ball Bearings, 3mm, 50-Pack Heat & Thermodynamics_Temperature & Heat Designed for liquid-fill Snell's-law workFifty pack of 3mm steel ball bearings, the smallest size in the series for pendulum and small scale collision experiments where a compact projectile mass is needed.