Harbottle, teaching tool for introducing pressure and discussing its applications, such as vacuum cleaners, flight, pumps, weather, and even how we breathe, balloon and a bottle, Measures 5In in diameter. Grades 5 and up
II Launch Pad, Porta-Pad*, with blast deflector and standoff, two-piece 1/8 inch launch rod, safety cap and key, no glue/tools required, Quick assembly,
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.
Magnetic Earth Field Model, Use it as is or place it on an overhead projector to show the whole class, Iron filings are suspended in oil to allow the included magnet to align them to its field