Disposable Bacterial Filter, disposable microbacterial filter significantly reduces need to sterilize your spirometers flow head, 30 mm ID opening allows for an easy, air-tight fit to the flow head
Solid Steel Ball, 1-1/2In, Pair (Smashing Steel Sphere Kinetic Energy Demo), For physics experiments and demonstrations such as kinetic, density and volume measurements, pendulum bob, potential energy and conservation experiments, ballistics etc.
Properites of Toothpaste, Forensic Kit, Includes: Microscope slides, Coverslips, Deer hair sample, Cat hair sample, Human hair samples, Forceps, o determine the origin of a hair sample from a crime scene in relation to hair samples from four known suspects