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

    How to be heat-safe when playing sports

    Protecting young athletes from overheating is getting more important as climate change turns up the temperature.

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  2. Health & Medicine

    Scientists Say: Kidney

    The kidneys remove waste and excess water from the blood, forming urine.

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  3. Animals

    When it’s hot, echidnas blow snot bubbles to cool off

    These spiky Australian mammals have a trick to moisten their noses, allowing them to survive hot temperatures that should kill them.

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  4. Health & Medicine

    Explainer: Why it’s easier to get sick in the winter

    Low humidity helps viruses survive, and cold weather blunts some of the body’s immune responses — making colds and other viral infections more likely.

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  5. Brain

    Scientists Say: Glymphatic System

    The glymphatic system bathes the brain in cleansing fluids during sleep and clears away harmful cellular waste.

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  6. Science & Society

    What’s the fun in fear? Science explores the appeal of scary movies

    On its face, the appeal of horror doesn’t make much sense. But scientists are starting to uncover who’s most likely to enjoy scary films and why.

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  7. Animals

    Sea sponges spew slow-motion snot rockets to clear out their pores

    Sea sponges rely on a sneezing technique to clear their pores. The mucus flushes out debris — and provides a snack for other marine life.

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  8. Climate

    Heat waves appear more life-threatening than scientists once thought

    This is bad news as a warming planet leads to growing numbers of excessive heat waves — and millions more people facing potentially deadly temperatures.

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  9. Health & Medicine

    Explainer: What is sickle cell disease?

    Gene mutations can alter an individual’s hemoglobin in ways that curl their blood cells. This can cause painful sickle cell disease.

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