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Single Density Cube with Hook, Lead (Pb). Solid Lead density cube with 20mm (0.78 inch) sides. Including hook, cube measures 1.5 inches in height. Cube features element stamp for easy identification. Excellent for physics classrooms. Density Cubes have a wide range of educational applications for all grade levels, including density investigation, specific heat and specific gravity exploration. Since these cubes are equipped with hooks, they can be easily lifted from water. Additionally, the hooks allow the cube to be easily massed using a spring scale. Cubes have a mass between 50 grams and 400 grams, so a 5.0 to 1.0 Newton spring scale will work perfectly (See B00ARJOS8Y - not included).
Due to the nature of raw metals, some oxidation or corrosion due to humidity and storage may occur. Simply scuff any oxidation off to make cube look brand new again. These density cubes are designed to be used in an educational setting and are not fabricated using ultra high precision machining. Expect tolerances in the +/- 5% range of any stated dimensions (although they are generally much tighter).
The Eisco Labs Density Investigation series is designed to help students identify and figure out mass, understand the relationship between mass/volume/density, understand specific heat and specific gravity, and other introductory physics and chemistry concepts.
Started over 50 years ago as a small, family-owned manufacturing company, Eisco now produces over 6,500 product lines for the science education and scientific research markets. They have headquarters in both India and the US, and serve hundreds of distributors around the world.
Their core products include glassware, physics apparatus, biology models & equipment, and chemistry lab supplies. Products are designed by a team of laboratory professionals and engineers with quality and durability in mind.