HS-LS1-3

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

More Stories in HS-LS1-3

  1. 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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  2. 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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  3. 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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  4. 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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  5. Plants

    Young corn leaves can ‘smell’ danger

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

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  6. 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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  7. 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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  8. Health & Medicine

    Scientists Say: Kidney

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

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  9. 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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