HS-PS1-1

Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.

More Stories in HS-PS1-1

  1. Earth

    Let’s learn about snow

    Snow is more than just frozen water vapor. Scientists are studying everything from its shape to other planets where snowflakes fall.

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  2. Chemistry

    Scientists Say: Molecule

    A molecule is a group of atoms linked with chemical bonds. It’s the smallest particle of a substance that has all of its chemical properties.

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  3. Chemistry

    Batteries should not burst into flames

    Because lithium-ion batteries power modern life, they need to store a lot of energy. Now scientists are focusing on making them safer.

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  4. Chemistry

    Chemistry’s ever-useful periodic table celebrates a big birthday

    2019 is the International Year of the Periodic Table. But the traditional chart is just one of many shapes that chemists and other scientists have developed to organize the elements.

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  5. Climate

    Explainer: The making of a snowflake

    Have you ever wondered how a snowflake gets its shape?

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  6. Materials Science

    Nanowires made from silver are super stretchy

    When silver nanowires stretch slowly, atoms on their surface can spread to heal weak spots. The discovery could lead to more flexible electronics.

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  7. Physics

    How to chill an object by sending its heat into space

    Researchers have designed a device that can cool an object by radiating its energy into outer space. Think of it as a solar panel in reverse.

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  8. Tech

    Water sensor quickly detects algal poison

    A new sensor can detect poisons from harmful algae within minutes so that drinking-water plants can start timely treatments.

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  9. Chemistry

    The newest elements finally have names

    Nihonium? Tennessine? These aren’t body parts or medicines. They’re among the names just given to the four newest superheavy elements.

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