MS-PS4-2

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

  1. Health & Medicine

    Surviving Mars missions will take planning and lots of innovation

    Astronauts that go to Mars will need protection from microgravity and radiation, plus mini-medical devices to diagnose problems and manage emergencies.

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  2. Agriculture

    Student scientists work to help all of us survive a warmer world

    From glaciers in the refrigerator to a rover in the field, here’s how young scientists are looking to help us adapt to climate change.

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  3. Climate

    Changing climates can take cooling tips from warm regions

    When summer heat waves hit northern cities, people might look to keep cool using tropical building strategies — and forgotten architectural wisdom.

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  4. Archaeology

    Stonehenge enhanced voices and music within the stone ring

    Scientists built a 'Stonehenge Lego' model in a sound chamber to study how sound would have behaved in the ancient stone circle.

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  5. Brain

    You don’t see as much color as you think

    It might seem like we live in a world full of color. But when scientists flip it into black and white, most people never notice the switch.

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  6. Planets

    Saturn’s moon Titan may host lots of dried lakes

    Suspicious spots around the moon’s middle could be the beds of ancient lakes. If so, this might solve a 20-year-old mystery.

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  7. Physics

    Spotted: Milky Way’s giant gas bubbles in visible light

    The bubbles have different colors, based on how the gas inside them moves. That could give clues to how the bubbles developed.

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  8. Brain

    Explainer: How our eyes make sense of light

    It takes a lot for images before the eyes to be 'seen.' It starts by special cells sensing the light, then signals relaying those data to the brain.

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  9. Physics

    Understanding light and other forms of energy on the move

    Radiation needn’t be scary, especially if it allows us to see our family or use our cell phones. Here’s a guide to light and other types of emitted energy.

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  10. Animals

    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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  11. Animals

    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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  12. 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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