20mm Aluminum Density Cube with Hook Lab Supplies_Clips sized to drop a low-resistance

sized to drop a low-resistance load into a student-built circuit without rewiring or component-mounting

and heart-tube formation for embryology and developmental biology teaching

Zinc-plated rectangular steel bar-magnet pair packaged with keepers that bridge the poles in storage

this adjustable board accommodates specimens for butterfly

this 6V-maximum electromagnet supports paper-clip-load measurements that reveal the linear relationship between input voltage and lifting force

20mm Aluminum Density Cube with Hook Lab Supplies_Clips sized to drop a low-resistanceHangs a 20mm solid aluminum cube via an integrated hook for water displacement density work, marked (Al) on one face with a total 1. 5 inch height including the hook.