$ 70.21
Details
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This set of 12 cylindrical bars features a variety of materials for identification exercises and exploration of density, mass, and volume. The included materials are: hardwood, softwood, aluminum, copper, brass, rubber, nylon, Delrin, PVC, glass, acrylic, and Teflon. Each cylinder has the same diameter, 0.5" (12.5mm), but a different length. The set comes with a wooden storage block. This product is excellent for physics classrooms and includes a comprehensive manual that covers the basics of density, mass, and volume, as well as instructions for making calculations. To use this set, you will need a weight device capable of measuring tenths of grams (such as a spring scale or digital balance) and a metric ruler or caliper. Please note that due to the nature of raw metals, some oxidation or corrosion may occur due to humidity and storage; simply scuffing off any oxidation will restore the item's appearance. These density metals are designed for educational use and are not fabricated using ultra-high-precision machining, so expect tolerances in the +/- 5% range of any stated dimensions (although they are generally much tighter). The Eisco Labs Density Investigation series aims to help learners become familiar with the appearance, feel, texture, hardness, and density of a range of common substances, while providing them with the tools to identify and calculate mass, understand the relationship between mass, volume, and density, and explore specific heat and specific gravity, as well as introductory physics and chemistry concepts.
