Premium Dicot Stem Model with Transverse Section, on Base Waves & Oscillation_Sound & Resonance one fitted with an exploder

one fitted with an exploder piston for momentum and action-reaction investigations

and HVAC work

101-piece teacher-grade molecular model set with 51 atoms and 50 bonds covering carbon

configured to make and break a circuit at the rhythm of a Morse-code transmission for telegraph-history demonstrations

Base-mounted 2-stroke diesel engine model in aluminum and plastic

Premium Dicot Stem Model with Transverse Section, on Base Waves & Oscillation_Sound & Resonance one fitted with an exploderGreatly magnified transverse dicot stem model on a mounted base exposes vascular bundle arrangement and primary tissue layers for advanced botany teaching.