Density Cube Set, Demonstrates density experiment in a dozen ways, Pack of 12

Details

Two cubes to our 10-cube setLignum Vitae (ironwood), one o fthe heavies and hardest woods in the world, sinks in water, although because it is wood, you students may expect it to floatPolypropylene floats in water, although because it is dense plastic, your students may expect it to sink12 one-inch cubes, with instructions and handy storage case