MAGNETIC COMPASS: In case FREELY MOVING NEEDLE IN ALUMINIUM OR PLASTIC CASE.
1921/ALBComprising metal strips of copper, brass, iron & aluminum mounted on a wooden base.
1533/AEDCOEFFICIENT OF LINEAR EXPANSION APPARATUS To demonstrate the different heat conductivities
1517/AEDBIMETALIC STRIPS (Compound Bar) 200 x 25 mm, reverted, with wooden handle.
1505/AELRING AND BALL: On stand Brass ball 25 mm dia is suspended from a rod, on a tripod stand.
1525/AEDKids lab coat with 3 pockets. Made from easy-care polyester/cotton blend.
143/AE