HS-PS1-2

Construct and revise an explanation for the outcome of a simple chemical reaction based on the outermost electron states of atoms, trends in the periodic table, and knowledge of the patterns of chemical properties.

More Stories in HS-PS1-2

  1. Physics

    Chopping an onion? Sharp knives can keep its juice out of your eyes

    Slow and steady cuts with a sharp blade, video shows, can reduce the pain-inducing spray of tiny onion-juice droplets.

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  2. Chemistry

    New materials yank ‘forever chemicals’ from water

    Materials known as metal-organic frameworks, or MOFs, trap some PFAS fast — and can be reused again and again.

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  3. Microbes

    Thank microbes for chocolate’s tasty flavors

    Cocoa beans matter, but yeast and bacteria may be the real secret to fine chocolate flavor.

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  4. Chemistry

    Newfound ‘anti-spice’ compounds tame chili peppers’ heat

    Five compounds make some chili peppers taste less spicy than others. Scientists are still figuring out why.

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  5. Tech

    Artificial intelligence helped design a new type of battery

    Supercomputing and AI cut the early discovery steps from decades to just 80 hours. The process led to a new solid electrolyte.

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  6. Health & Medicine

    9 things to know about lead’s health risks — and how to curb them

    Lead has been linked to lower IQ, behavior problems, mental-health disorders, strokes and more health impacts. There are ways to reduce your exposure.

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  7. Earth

    The weird sky glow called STEVE is really confusing scientists

    Researchers are trying to figure out the recipe of atmospheric conditions that creates this aurora-like light show.

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  8. Chemistry

    Pollution power? A new device turns carbon dioxide into fuel

    Scientists made a device that converts the greenhouse gas into formate. This salt can then run a fuel cell to make electricity.

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  9. Animals

    These beetles ‘drink’ water using their butts

    Red flour beetles can survive in very dry environments. New research shows how the beetles can suck water from the air using their rear ends.

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