".2mL PCR tubes"

With the magnet is on the outside, it's easy to see the science behind these eddy tubes.

Great density set for physics classrooms and lessons.

Wide range of cubes for density experiments.

Density Cubes, Set of 6 Metals, 0.4" (10mm) sides.

Set of 9 cubes, 25 mm side. Supplied in wooden box.

Density Cubes, Set of 6 Metals, 0.8" (20mm) sides.

Density Cubes, Set of 4 Metals with Hooks, 1.26" (32 mm) sides, lead free.

High quality density cubes for the classroom.

Demonstrate the inverse relationship between density and volume.