HS-PS1-8

Develop models to illustrate the changes in the composition of the nucleus of the atom and the energy released during the processes of fission, fusion, and radioactive decay.

More Stories in HS-PS1-8

  1. Archaeology

    Knotted strands of 500-year-old hair tell a surprising story

    Used in a device called a khipu, the hair reveals the owner’s simple diet. Those data now suggest that in Incan society, even some commoners kept records.

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  2. Chemistry

    Scientists Say: Nucleosynthesis

    For this nuclei-forging cosmic process, the Big Bang was just a way to get started.

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  3. Physics

    Weirdly, mayo can help study conditions ripe for nuclear fusion 

    Yes, mayo. The texture of the sandwich spread is perfect for mimicking what a fusion fuel capsule goes through when blasted with lasers.

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  4. Archaeology

    Iron Age grave in England points to a possible woman warrior

    The grave holds a sword. It hints the buried woman fought or helped plan raids some 2,000 years ago in what’s now southwest England.

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  5. Physics

    In a breakthrough experiment, fusion gave off more energy than it used

    The sun creates energy through nuclear fusion. Now scientists have too. This achievement raises hopes for developing a new type of clean energy.

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  6. Physics

    Scientists Say: Fission

    Nuclear fission is the process of splitting atoms apart to release huge amounts of energy.

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  7. Physics

    Explainer: Radioactive dating helps solve mysteries

    Knowing the decay rate of radioactive elements can help date ancient fossils and other artifacts.

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  8. Physics

    Explainer: Radiation and radioactive decay

    Like clockwork, radioactive forms of some elements shed parts of themselves as they attempt to become nonradioactive.

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  9. Physics

    Scientists Say: Neutron

    Neutrons are one of the main building blocks of atoms and have no electric charge.

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