HS-LS1-3

Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.

More Stories in HS-LS1-3

  1. Health & Medicine

    Excess weight alters results of blood tests in kids and teens

    Carrying extra weight could affect many routine blood tests in kids, new data show. Knowing this might help doctors better interpret lab results.

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  2. Health & Medicine

    Explainer: What are allergies?

    Sometimes the body’s immune system works too well, like a smoke alarm that blares every time you cook pizza. The results can range from uncomfortable to potentially life-threatening.

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  3. Brain

    Scientists’ brains shrank after a long stay in Antarctica

    The isolation of a long-term mission at an Antarctic research station shrunk part of crew members’ brains, a small study suggests.

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  4. Microbes

    Globetrotting microbes in airplane sewage may spread antibiotic resistance

    Along with harder-to-kill microbes, airplane sewage contains a diverse set of the genes that let bacteria evade antibiotics.

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  5. Brain

    As teens gain weight, they find high-fat foods less pleasurable

    Teens who gained excess weight showed less activity in the brain’s reward center when viewing or tasting foods with lots of fat.

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  6. Brain

    Sleep may jumpstart the brain’s power washing system

    Waves of fluid wash into the human brain during sleep. That’s good. They just may help clean out toxic proteins.

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  7. Animals

    Blood vessels in their heads kept big dinos from overheating

    Giant dinosaurs evolved several ways to cool their blood and avoid heatstroke.

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