HS-LS1-3

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

More Stories in HS-LS1-3

  1. Tech

    Bioelectronics research wins top award at 2024 Regeneron ISEF

    Three grand-award winners each took home at least $50,000. Hundreds more teens shared more than $9 million in prizes at the international competition.

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  2. Chemistry

    Here’s why teens’ body odor can be especially strong

    The body odors of teens and younger kids share dozens of chemicals in common. But teens have some that infants and toddlers appear to lack.

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  3. Health & Medicine

    A new type of immune cell may cause lifelong allergies

    These special memory cells were present in people with allergies and absent in those without.

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  4. Plants

    On hot summer days, this thistle stays cool to the touch

    Its yellow flowers can cool themselves substantially, staying up to 10 degrees C (18 degrees F) cooler in extreme heat.

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  5. Psychology

    You’re too distracted. Here’s why that matters and what to do about it

    Science reveals the many reasons we are so distracted, from poor sleep and social media to diet and exercise. It also shows us how to take back our focus.

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  6. Health & Medicine

    The teen brain is especially vulnerable to the harms of cannabis

    Today’s concentrated cannabis products — with higher THC levels — may pose greater risks of addiction and psychosis than ever before.

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  7. Climate

    Some tree leaves are finding it too hot for photosynthesis

    Earth’s ongoing fever threatens to push entire forests toward this heat limit — and possible death.

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  8. Plants

    Young corn leaves can ‘smell’ danger

    As they mature, these leaves lose their ability to detect threatening scents.

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  9. Psychology

    Spending time in green spaces can provide big health benefits

    Walking through a park or playing in a yard can make you feel better, both mentally and physically. Here’s how — and evidence it works for people at any age.

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