Oersted's Apparatus, demonstrates the action of electric current on a magnet. A cobalt steel needle (75mm long) with agate bearing supported by pivot, mounted on a plastic base and surrounded by rectangular frame fitted with terminals, 0.6 lbs, 8.0x7.5x1.8in
Optics Kit - Junior, 2.6lbs, 15.0x11.4x4.3inch, ray box with bulb and flex having two 4 mm plugs, a pair of blanking plates, two slit plates, Planoconvex lens, color mixing set, frosted concave lens, frosted convex lens, frosted semicircular lens