Green 5mm LED, 10-Pack Lab Equipment and Supplies_Plastic Labware US-milled iron filings at 40-60

US-milled iron filings at 40-60 mesh in a 250-gram translucent screw-cap bottle

pink-dotted at one end of each magnet to flag the matching pole and supplied with steel keepers between lessons

Speed-controlled 6V motor driving two cams pumps four spring-mass systems at any chosen frequency

Adjustable locking hook positions items 110 mm from the support rod on this suspension clamp

and wood for multi-material pendulum

Green 5mm LED, 10-Pack Lab Equipment and Supplies_Plastic Labware US-milled iron filings at 40-60Ten pack of 5mm green through hole LEDs, rated for student circuit construction and series parallel investigations where junction voltage and current limiting concepts get introduced.