Density Identification Set of Four Metal Cubes for Science Education and Physical Experiments Overview A set of four metal density blocks made from purity materials for classroom labs, home experiments, and handson science education. Each block is a cube of the same side length, allowing direct comparison of mass and volume to determine density and material identification. Key benefits Accurate density comparison: purity aluminum, copper, and iron blocks are included in the set, along with one additional cube, enabling reliable relative density measurements. Uniform geometry: All cubes share the same side length so volume is consistent across samples, simplifying calculations and reducing measurement error. Durable materials: Metal construction provides long service life and repeated use in teaching environments. The iron block in particular is strong and built for extended use. Educational focus: Designed for physical experiment use, the set supports demonstrations of density, buoyancy, mass measurement, and unit conversion practice. Easy to collect and handle metal samples: Useful for users who need access to metal specimens that are not commonly encountered in daily life. Important attributes Materials: Aluminum block, copper cube, iron block, plus one additional purity cube. Purity: All four density blocks are produced to a purity standard to improve measurement consistency. Size: Cubes are identical in side length for consistent volume across materials. Function: Physical experiment equipment for density identification and material comparison. Compatibility: Suitable for physics classrooms, STEM kits, laboratory demonstrations, and hobbyist collections. Practical use scenarios Classroom experiment: Students measure mass and use water displacement or geometric calculation to determine the density of each cube, then compare results to learn about material properties. Laboratory calibration and practice: Use the set for calibrating measurement techniques, practicing unit conversions, and validating scales or measurement methods. Science fair or demonstration: Present visible differences in mass and behavior in fluids to illustrate density and buoyancy concepts during demonstrations. What you get and why it matters A consistent, purity set of four metal cubes that streamlines handson learning and experimental procedures. Durable construction suitable for repeated classroom or lab use, supporting ongoing education and practical practice with real metal samples. A straightforward tool to help learners develop measurement accuracy and unit conversion skills while exploring material properties.