Physics Spring for Hooke's Law, 3.5cm Diameter Subcategory_Glass Tubing closing when a magnet is

closing when a magnet is brought near to introduce magnetic-actuated switching alongside hand-operated switches

providing a stable burner on classroom benches while controlling flame type through a collar

providing waterproof chemical-resistant splash protection with a smooth nonporous surface that wipes clean

Front glass window slides up to allow insertion of ionizing material in chamber

and gastric wall layers in a compact footprint for digestive anatomy teaching

Physics Spring for Hooke's Law, 3.5cm Diameter Subcategory_Glass Tubing closing when a magnet isPhysics grade extension spring with a 3. 5cm diameter for spring constant, elastic potential energy, and simple harmonic motion investigations in introductory mechanics.