Breckland Scientific 2021 Catalogue

Materials

Properties of Materials

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1 MOLE SET This Mole Set contains samples of four different metals and helps students to visualise a mole of a substance in a solid state, as well as developing a better understanding of the concept of the mole, mass, molar mass, along with the differing properties of the various metals. The set contains four element specimens: copper, iron, zinc and aluminium, each containing approximately one mole of the element. Comparison of each sample, side-by-side, clearly shows that the same molar amount of different elements have different masses and occupy different volumes, due to each element having a different atomic mass and density. Cat No. Description Price Per MTR-540-100 Mole Set 18.39 ea. 2 DENSITY CUBE SET A set of cubes for density investigations, consisting of twelve 20mm sided cubes of different materials. Suitable for comparison of mass and density. Supplied in a wooden box, the cubes are numbered and listed on the box so the material type can be withheld from the students if re- quired. Contents: Copper, Iron, Tin, Acrylic, Cork, Softwood, Brass, Aluminium, Zinc, Lead, Polythene, Hardwood. Cat No. Description Price Per MTR-060-100 Density Cube Set 30.73 ea. 3 LASCELLS HARDNESS TESTER The hardness of metals, plastics and many other materials can be reliably tested using this apparatus. The material to be tested is placed in the base and a weight is dropped from a standard height on to a punch. The impact cone diameter is analysed to compare the material’s hardness. Supplied with sample materials in sheet form, with spares also available. Cat No. Description Price Per MTR-275-100 Hardness Tester 68.50 ea. MTR-275-120 Hardness Tester Materials 15.50 ea. 4 YOUNG’S MODULUS APPARATUS For determining the relationship between a load applied to a wire and the resulting extension. Comprises a scale plate carrying a 0 to 30 mm scale, and a moveable vernier readable to 0.1 mm. Both have bars with clamping screws for the wires and hooks for the tension weight and loading masses. Supplied with clamp for fitting a tension weight. Complete with load masses and wires. Cat No. Description Price Per MTR-770-100 Young’s Modulus Apparatus 42.64 ea. MTR-770-150 Young’s Modulus Set of 6 Wires 10.29 set DISPLACEMENT VESSEL For density, specific gravity and Archimedes principle. With overflow. Metal or Plastic. Cat No. Metal Height Diameter Price Per 5 HPL-150-100 Metal 115mm 90mm 7.47 ea. 6 HPL-150-250 Plastic 140mm 110mm 3.06 ea.

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Mole Set

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Density Cube Set

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Hardness Tester

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Displacement Vessels

Young’s Modulus Apparatus

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