Basic Magnetic Field Chamber, 3.625 x 2.3125" Material_Borosilicate Glass 5-inch funnels and adjusts up

5-inch funnels and adjusts up to 17 inches in height for the chemistry bench

deflecting a pivoting cobalt-steel compass needle inside a rectangular conductor frame to show that current generates a magnetic field

Designed to project narrow beams through interchangeable slit plates

the wooden storage box housing optical-grade shapes for dispersion

Pair of nylon-fringed metal pompons on insulated stands that fan into wide cones under mutual repulsion when charged

Basic Magnetic Field Chamber, 3.625 x 2.3125" Material_Borosilicate Glass 5-inch funnels and adjusts upSealed transparent cylinder 3. 625 inches tall and 2. 3125 inches across, filled with iron filings whose alignment renders 3D field lines around any bar magnet up to 0. 625 inches in diameter.