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  • Energy Band Gap Experiment Quick View
    • Energy Band Gap Experiment Quick View

    • Energy Band Gap Experiment

    • Objectives: To find the energy band gaps for different semiconductor diodes and LEDs Principle: At absolute zero-degree temperature, semiconductors are pure insulators. As the temperature is increased thermal energy create vibrations in crystal lattice and few electrons, which acquire sufficient vibrational energy break their covalent bond, become free, and move to the conduction band. The energy required to rapture the…
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  • Energy Conversion Kit Quick View
  • Energy Transformation Balls Quick View
    • Energy Transformation Balls Quick View

    • Energy Transformation Balls

    • Demonstrates conversion of kinetic energy into heat and sound energy during a collision. Consists of a pair of heavy steel balls. When the balls strike against each other with a piece of paper between the balls, the heat causes a hole to appear in the paper. The kinetic energy of the balls upon collision is converted to heat which is…
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  • Equal Mass Set Quick View
    • Equal Mass Set Quick View
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    • Equal Mass Set

    • To demonstrate the inverse relationship between density and length. The specimens, Aluminum, Copper, Nylon, Polyvinylchloride and Polyethylene, are all 12 mm in diameter with 15 gm mass. Length range from 15 to 100 mm. Instructions are included.
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  • Equilateral Prism, Glass Quick View
    • Equilateral Prism, Glass Quick View

    • Equilateral Prism, Glass

    • Top quality prisms for experiments in diffraction, dispersion, and spectrum formation. Ages 7+
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  • Extension Support Rings Quick View
  • Faraday Effect Experiment Quick View
    • Faraday Effect Experiment Quick View

    • Faraday Effect Experiment

    • OBJECTIVES: Observe the effect of a magnetic field on plane of polarization of polarized light as it passes through a dispersive medium. Measure the Verdet’s constant of a given dispersive material. PRINCIPLE When a linearly polarized light passes through an optical medium in a region of strong magnetic field, the plane of polarization of linearly polarized light rotates by an…
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  • Faraday’s Disc Quick View
    • Faraday’s Disc Quick View

    • Faraday’s Disc

    • To demonstrate the conversion of mechanical energy into electrical energy. A copper disc with a turning handle rotates between two poles of a horseshoe magnet. On base with two terminals, one of which is connected to a pillar supporting the disc and the other to a brush bearing on edge of the disc.
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  • Filter Papers, Grade 1 Quick View
    • Filter Papers, Grade 1 Quick View

    • Filter Papers, Grade 1

    • Grade 1 filter paper is the most widely used filter paper for routine applications with medium retention and flow rate. This grade covers a wide range of laboratory applications and is frequently used for clarifying liquids. Traditionally the grade is used in qualitative analytical separations for precipitates such as lead sulfate, calcium oxalate (hot), and calcium carbonate. It is used…
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  • Filter Papers, Grade 2Filter Papers, Grade 2 Quick View
    • Filter Papers, Grade 2Filter Papers, Grade 2 Quick View

    • Filter Papers, Grade 2

    • Grade 2 filter paper is slightly more retentive and having more absorbing power than Grade 1 with a corresponding increase in filtration time. In addition to general filtrations, the extra absorbency is utilized, for example, to hold soil nutrient in plant growth trials. Also used for monitoring specific contaminants in the atmosphere and in soil testing.
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  • Filter Papers, Grade 3Filter Papers, Grade 3 Quick View
    • Filter Papers, Grade 3Filter Papers, Grade 3 Quick View

    • Filter Papers, Grade 3

    • Grade 3 filter paper is almost double the thickness of Grade 1 with still finer particle retention and excellent loading capacity; more precipitate can be held without clogging. The extra thickness gives increased wet strength and makes this grade highly suitable for use in Buchner funnels. The high absorbency is particularly valuable when the paper is used as a sample…
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  • Flame Spreader Quick View