MS-PS4-2

Develop and use a model to describe that waves are reflected, absorbed, or transmitted through various materials.

  1. Oceans

    Going bright may help corals recover from bleaching

    When some corals bleach, they turn neon colors. Flashy hues may be part of a response that helps these corals recover and reunite with their algae.

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  2. Chemistry

    This tube worm’s glowing slime may help sustain its own shine

    Snot oozed by a marine tube worm can glow for up to 3 full days. The secret of how this works might lead to long-lasting lights that glow on and on.

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  3. Physics

    Explainer: Rainbows, fogbows and their eerie cousins

    Light shining through a water droplet can make more than just a rainbow. A range of other colorful arcs also can develop.

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  4. Animals

    Lots of frogs and salamanders have a secret glow

    A widespread ability to glow in brilliant colors could make amphibians easier to track down in the wild.

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  5. Environment

    Legos could last a disturbingly long time in the ocean

    By looking at toys washed up on beaches, scientists have estimated how long it takes hard plastics to break down in the oceans. And it’s a long time.

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  6. Health & Medicine

    New ultrasound treatment kills off cancer cells

    Low-frequency ultrasound destroys cancer cells while leaving most healthy cells intact.

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  7. Brain

    Zapping the brain may make it work right again

    Sending electrical zaps to electrodes implanted deep in the brain can help people with Parkinson’s disease, depression and even obsessive-compulsive disorder.

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  8. Earth

    Newfound ‘dunes’ is among weirdest of northern lights

    There’s a new aurora dubbed the 'dunes.' It’s weird and joins the ranks of black auroras, STEVE and other odd natural light shows.

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  9. Life

    Here’s how butterfly wings keep cool in the sun

    Butterfly wings sport structures that let living tissues release more heat than the rest of the wing.

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  10. Science & Society

    Science isn’t just for scientists

    It doesn’t take an advanced degree or a lab to do science. All you need is curiosity and an interest in learning something new every day.

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  11. Physics

    Explainer: Understanding waves and wavelengths

    A wave is a disturbance that moves energy from one place to another. Only energy — not matter — is transferred as a wave moves.

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  12. Earth

    Study appears to rule out volcanic burps as causing dino die-offs

    New data on when massive volcanic eruptions happened do not match when the dinosaur mass extinction took place.

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