HS-LS2-7

Design, evaluate, and refine a solution for reducing the impacts of human activities on the environment and biodiversity.

  1. Earth

    Analyze This: Wildfires are pumping more pollution into U.S. skies

    Researchers wanted to study the health effects of wildfire smoke. But they realized they didn’t know where it was and how much exposure people had.

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  2. 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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  3. Animals

    Some ecologists value parasites — and now want a plan to save them

    Parasites get a bad rap as disease-causing, unwelcome guests on other organisms. But parasites are also imperiled, and scientists don’t want to lose them.

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  4. Health & Medicine

    Dogs and other animals could aid the spread of monkeypox

    Now that monkeypox has spread to a dog, researchers fear other species could help the virus become widespread outside of Africa for the first time.

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  5. Animals

    Palm-size marsupials may face extinction from wild ‘house’ cats

    After surviving Australian bushfires, the Kangaroo Island dunnart is losing ground as it's targeted by hungry predators.

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  6. Animals

    Let’s learn about amphibians

    Amphibians are named after the Greek word for “double life” because many transform from water dwellers to landlubbers as they grow up.

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  7. Plants

    Electric shocks act like vaccines to protect plants from viruses

    To protect crops against viruses in their home country of Taiwan, two teens invented a novel approach to fight blights.

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  8. Chemistry

    Let’s learn about cellulose

    The world’s most abundant natural polymer is finding all kinds of new uses, in everything from ice cream to construction.

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  9. Environment

    Ponds made to control floods can spew climate-warming gases, study finds

    Younger stormwater ponds can release more carbon in gases than they absorb, a study finds. That could aggravate global warming.

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  10. Life

    Explainer: What is an endangered species?

    Threats such as climate change and habitat loss can put species at risk of going extinct. Different words describe that risk.

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  11. Environment

    Bees and butterflies struggle to find flowers in polluted air

    Emissions from cars and trucks make it harder for insects to find flowers. That in turn reduces flower visits and pollination, a new study finds.

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  12. Life

    Living mysteries: Why teeny-weeny tardigrades are tough as nails

    Tardigrades often live in cool, damp moss. Their cushy life has somehow prepared them to survive the lethal radiation of outer space.

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