
The Density Kit by United Scientific is a metric measurement and density activity set with a metric ruler, a 76 x 25 x 6 mm aluminum bar, two 13 mm aluminum cubes, a 13 mm steel sphere, and a 13 mm glass sphere, plus an activity guide. Students measure each specimen, calculate volume, and apply Density = Mass/Volume. Middle and high school science teachers use it to build measurement skills alongside density concepts.