HS-LS2-2

Use mathematical representations to support and revise explanations based on evidence about factors affecting biodiversity and populations in ecosystems of different scales.

More Stories in HS-LS2-2

  1. Oceans

    Ocean heat waves are on the rise — and killing coral

    Ocean heat waves are becoming hotter and more frequent. And one can be blamed for the 2016 coral deaths on the Great Barrier Reef.

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  2. Health & Medicine

    Which bacteria hang out in belly buttons? Here’s a who’s who

    Bacteria are everywhere — even in our belly buttons. One teen at Intel ISEF decided to find out what types people were harboring in their navels.

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  3. Animals

    In a colony, king penguins act like a liquid

    Is this a living liquid? King penguins move around within their colonies, clearing out some space, and then refilling it. That behavior resembles a liquid, scientists conclude.

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  4. Life

    Fighting ‘like an animal’ may not be what you expect

    Evolution has produced a broad range of conflict styles. And some of the best examples come from outside the world of the familiar.

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  5. Chemistry

    Cool Jobs: Diving for new medicines

    Scientists mix research with underwater adventure as they search the oceans for new chemicals to treat infections, cancer and more.

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  6. Health & Medicine

    Analyze This: Flu vaccine’s protection varies

    Getting a flu shot every year is an important way to protect yourself and those around you — even if the vaccine isn’t 100 percent effective.

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  7. Plants

    Explainer: The fertilizing power of N and P

    Two elements — nitrogen and phosphorus — help plants grow. When the soil doesn’t have them, farmers might add them in the form of fertilizer.

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