US$ 70.00
sized to fit standard optical-bench lamp houses and stocked together so a burned-out lamp does not stall an experiment
5cm coil diameter on a 5cm closed-length helix
this insulated 4mm-stackable safety lead carries up to 12A through nickel-plated split-hollow pins for branched-circuit student work
both striking the ground together
Eleven-ohm 5A air-cooled rheostat with constantan winding on a 300x44mm vitreous-enameled steel tube and a slide-bar carriage carrying a phosphor-bronze contact
3D Plant Cell Division (Meiosis) Model, 24 x 18", Hand-Painted Size_Small sized to fit standard optical-benchThree dimensional plant meiosis model traces chromosome pairing, crossing over, and reduction division through successive hand painted stages on a mounted base.
US$ 70.00
US$ 30.00
US$ 45.00
US$ 40.00
US$ 65.00
US$ 18.95
US$ 19.95
US$ 19.95
US$ 45.00
US$ 40.00