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. Physics

    Scientists Say: Fission

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

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  2. 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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  3. 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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  4. Physics

    Scientists Say: Neutron

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

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  5. Earth

    Not one, but two asteroids might have ended the age of dinosaurs 

     A craterlike structure found off the coast of West Africa might have been formed by an asteroid that struck around the time dinosaurs went extinct.

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  6. Fossils

    Great white sharks may be partly to blame for the end of megalodons

    Zinc levels in shark teeth hint that megalodons and great whites competed for food — and great whites won.

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  7. Physics

    Scientists Say: Proton

    These positively charged particles are important building blocks in atoms.

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  8. Earth

    Tiny gemstones show when Earth’s crust first started moving

    Chemical hints observed in zircons suggest when the important process of plate tectonics first took off.

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  9. Ecosystems

    Scientists Say: Decay

    This word can refer to rotting flesh or the transformation of radioactive atoms.

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