Test Tube with Side Arm, 125 x 16mm, Borosilicate Glass Entomology & Zoology_Entomology Supplies showing how current through an

showing how current through an iron core builds magnetic flux in student investigations

5 inches tall

this 4-inch catch bucket with handle collects water displaced by submerged objects

Permanent-magnet stack inside an 8 x 5 inch base recharges weakened bar and horseshoe magnets by realigning their domains - no electrical power

Glass semicircular block at 100 by 18mm

Test Tube with Side Arm, 125 x 16mm, Borosilicate Glass Entomology & Zoology_Entomology Supplies showing how current through anTest tube with side arm in borosilicate glass measures 125 x 16mm for gas collection, distillation, and vacuum filtration applications.