Precision Boyle's Law Apparatus, Based on proven designs, this updated Boyles Law Apparatus permits a quantitative verification of Boyles Law to be quickly and easily performed
Double Convex Lens, Highly polished, optically true lens is excellent for physics classroom demonstrations in optics and light refraction, with ground edges, great for physics classrooms, with highest grade, Size: 1000 mm focal length, Lens measures 3in diameter, 0.1 weight
Replacement crystal board, Crystal: Ge Wafer, P type, Resistivity : 1 approx 10 ohm-cm, Crystal Size : 6x7 x 0.5mm (LxWxThickness), Orientation : <100>, Offset pot : Trim pot, Connection : 4mm safety socket, with adjusted Z pot, for Hall Effect SK006
Exo Terra Cricket Pen Replacement Foam, insert for the water dish supplied with the Exo Terra Cricket Pen. The water dish foam insert prevents the crickets held in the Cricket Pen from drowning. Replace the foam in
Plants in a bottle kit, photosynthesis and respiration, Kit contains: Student instructions, CO2 Indicator, O2 and CO2 Concentration Color Charts, 4 simulated water samples, 6 labeled droppers, Photosynthesis and Respiration Diagram Sheet, O2 Indicator, O2 and CO2 Test Sheet