Borosilicate Glass Filtering Flask, 2-Pack Chemical_Copper (II) Nitrate Waterproof and non-conductive fiberglass fifty-meter

Waterproof and non-conductive fiberglass fifty-meter tape measure with PVC coating and a flush winding handle

and Big Idea 4

giving video-analysis activities a clean tracking background

Ten-pack of sterile single-use polystyrene Petri dishes with vented lids distributes across parallel microbiology stations for clean class-wide culture work

Momentary-contact push-button switch on a base with two 4mm terminals

Borosilicate Glass Filtering Flask, 2-Pack Chemical_Copper (II) Nitrate Waterproof and non-conductive fiberglass fifty-meterPaired filter flasks equip two benchtop vacuum filtration stations or a backup setup for higher throughput separation of solid precipitates from filtrate.