US$ 169.00
101-piece teacher-grade molecular model set with 51 atoms and 50 bonds covering carbon
this six-metal density cube set of brass
one fitted with an exploder piston for momentum and action-reaction investigations
Simple-form Boyle's Law apparatus pairing a graduated plastic syringe on a wooden block with a weighted piston
Premium Dicot Stem Model with Transverse Section, on Base Waves & Oscillation_Sound & Resonance 101-piece teacher-grade molecular model setGreatly magnified transverse dicot stem model on a mounted base exposes vascular bundle arrangement and primary tissue layers for advanced botany teaching.
US$ 169.00
US$ 50.00
US$ 40.00
US$ 19.50
US$ 19.50
US$ 89.50