Science education products incorporate applied math and science principles into classroom and homeschool-based projects. Teachers in , elementary, and secondary classrooms use science education kits and products alongside science, technology, engineering, and math (STEM) to demonstrate STEM concepts and real-world applications through hands-on activities. Science education projects include a broad range of activities, such as practical experiments in engineering, aeronautics, robotics, energy, chemistry, physics, biology, and geology. Features - Color: Assorted color. - Material: Copper and Iron and Aluminum. - Size: 3.00 x 1.80 x 1.80cm/ 1.18 x 0.71 x 0.71 inch. - The product made of materials, strong and , can be used for decades. - This density identification set consists of cylinders of same length and of differing materials. - The set of 3 density cylinder metals included are all of very high purity. - The set comes in an attractive and plastic storage case. - Challenge yourself or your students to identify each material based on its density or specific gravity. Package list: 1 1 x iron 1 x aluminum