11-LED Array for Determining Planck's Constant Plastic Labware_Plastic Beakers & Jugs and amphibian skeletal structure for

and amphibian skeletal structure for comparative vertebrate teaching

supplying both current types to a single workstation for circuits and electromagnetism

Hand-painted enlarged flower cross section exposes the calyx

this translucent LDPE wash bottle meets GHS labeling requirements and delivers controlled flow through a flexible nozzle

Refracting white light into a visible rainbow spectrum

11-LED Array for Determining Planck's Constant Plastic Labware_Plastic Beakers & Jugs and amphibian skeletal structure forEleven LED array for determining Planck's constant by plotting wavelength against threshold voltage, pairable with a direct vision spectroscope in advanced physics investigations.