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. Space

    Amateur astronomers reveal clues to a mysterious double aurora

    Stunning images from citizen scientists show an unusual pattern in ‘Northern Lights.’ They offer clues that may help astronomers better understand a curious red glow.

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  2. Physics

    Scientists Say: Proton

    These positively charged particles are important building blocks in atoms.

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  3. Materials Science

    Let’s learn about diamond

    Diamond is born under extreme heat and pressure inside Earth and elsewhere in the universe.

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  4. Animals

    Orb-weaving spiders use their webs like external eardrums

    Scientists discover that orb-weaving spiders listen with their legs, detecting sound vibrations that travel through their silken webs.

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  5. Materials Science

    Scientists Say: Silicone

    Silicone is a generic term for a whole slew of humanmade polymers with many different forms and applications.

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  6. Environment

    Widely used pesticides may threaten Earth’s ozone layer

    Data show a major class of long-used “eco-friendly” copper chemicals unexpectedly react with soil, making gases harmful to Earth’s protective ozone layer.

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  7. Chemistry

    Snail slime + gold could boost the power of sunscreens and more

    These two strange ingredients could make skin-care products that are better for both our skin and the environment.

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  8. Chemistry

    Explainer: What is a metal?

    Metals can bend and pull without snapping, and conduct electricity. The reason: Their atoms tend to lose electrons to neighboring atoms.

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  9. Chemistry

    Scientists Say: Silicon

    The chemical element silicon is used to make everything from bricks to cookware to electronics.

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