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. Planets

    How Earth got its moon

    How did our moon form? Scientists are still debating the answer. It may be the result of some one big impact with Earth — or perhaps many small ones.

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  2. Scientists consider how to visit the closest exoplanet

    Even at only a little more than four light-years away, a trip to our closest exo-world could take some tens of thousands of years — unless we’re willing to settle for virtual visits.

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  3. Archaeology

    The first farmers were two groups, not one

    The humans that began farming 10,000 years ago in the Fertile Crescent may have been two cultures living side-by-side.

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  4. Earth

    Helium discovery blows away shortage worries

    Fears that the world may soon run out of helium have been set aside for now by the finding of a huge reservoir of the gas in East Africa.

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  5. Archaeology

    Neandertals: Ancient Stone Age builders had tech skills

    Neandertals built stalagmite circles in a French cave 176,500 years ago. These structures show that these ancient human cousins had social and technical skills.

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  6. Chemistry

    Dwarf galaxy spawned heavy elements

    A study of nine stars in the dwarf galaxy Reticulum II found heavy elements. They had been produced after a violent stellar event sparked a chemical chain reaction.

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  7. Earth

    When life exploded

    Life exploded in diversity during the Cambrian Period. Experts are exploring what could account for this sudden change 540 million years ago.

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