Videos By Subject

  • Atoms: Ice cream atoms

    • 3-5
    • 6-8
    • 9-12

    Matter, such as this ice cream, is made up of many atoms.  » more info

    • Episodes/length: 1 program(s) / 0 minutes
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    • Website: http://www.uen.org/emedia
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  • Atoms: Light in tube

    • 3-5
    • 6-8
    • 9-12

    Replicates the experiments J.J. Thomson conducted to develop his model of an atom. Light is produced when an electric current is passed through a tube. When a magnetic charge is introduced, the rays are…  » more info

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  • Atoms: Like charges repel

    • 3-5
    • 6-8
    • 9-12

    Like charges repel one another.  » more info

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  • Atoms: Mass number of sulfur

    • 3-5
    • 6-8
    • 9-12

    The mass number of an atom is the sum of its protons and neutrons. The mass number of sulfur is 32.  » more info

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  • Atoms: Mass number video clip

    • 3-5
    • 6-8
    • 9-12

    The mass number of an atom is the sum of its protons and neutrons.  » more info

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    • Website: http://www.uen.org/emedia
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  • Atoms: Nucleus of atom

    • 3-5
    • 6-8
    • 9-12

    The nucleus is the dense core of an atom. It contains over 99 percent of the mass of an atom, but occupies a miniscule amount of the space.  » more info

    • Episodes/length: 1 program(s) / 0 minutes
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  • Atoms: Rutherford's model of atom

    • 3-5
    • 6-8
    • 9-12

    In Rutherford's model of an atom, positively charged particles are concentrated in a small, dense center of an atom called the nucleus. Negatively charged electrons are scattered around the nucleus.  » more info

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  • Atoms: Size of electron

    • 3-5
    • 6-8
    • 9-12

    Electrons are precisely one two-thousandth of the mass of a proton or neutron.  » more info

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  • Atoms: Subatomic particles III

    • 3-5
    • 6-8
    • 9-12

    The nucleus of an atom contains positively charged protons and neutrally charged neutrons. Negatively charged electrons orbit the nucleus.  » more info

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  • Avoiding Armageddon

    • 6-8
    • 9-12

    This series examines the grave danger that nuclear, biological and chemical weapons pose to all of humanity. It will define these major threats in light of the new global war on terrorism, explore the…  » more info

    • Episodes/length: 2 program(s) / 116 minutes
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