MS-PS4-2

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

  1. Environment

    Night lights make even the seas bright

    Light from coastal cities and offshore development may shine deep enough to disrupt tiny critters living dozens of meters (yards) below the surface.

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  2. Chemistry

    New cloth cools you when you’re hot, warms you when you’re cold

    Scientists 3-D printed the new fabric, which has even more tricks up its sleeve — such as conducting electricity and resisting radio waves.

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  3. Earth

    The Alps’ Matterhorn shows how much even big mountains sway

    Such mountain sway data can help planners map high-risk zones for peaks, bridges or any large structures.

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  4. Earth

    Volcanic avalanches may be more destructive than previously thought

    Pressures within these pyroclastic flows may be as much as three times as high as observations had suggested.

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  5. Animals

    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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  6. Materials Science

    Let’s learn about glass

    Unlike the atoms in other solids, the atoms in glass don’t exist in an orderly crystal structure. They’re more jumbled up, like the atoms inside liquids.

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  7. Tech

    This crumb-sized camera uses artificial intelligence to get big results

    Researchers have developed a camera the size of a coarse grain of salt that takes amazingly clear photos.

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  8. Physics

    Explainer: Telescopes see light — and sometimes ancient history

    Different kinds of telescopes on Earth and in space help us to see all wavelengths of light. Some can even peer billions of years back in time.

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  9. Planets

    The long-awaited James Webb Space Telescope has a big to-do list

    The James Webb Space Telescope has been in the works for so long that new fields of science have emerged for it to study.

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  10. Chemistry

    Snail slime + gold could boost the power of sunscreens and more

    These two strange ingredients could make skin-care products that are better for both our skin and the environment.

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  11. Chemistry

    This glitter gets its color from plants, not a synthetic plastic

    In the new material, tiny arrangements of cellulose reflect light in specific ways to create vibrant hues in an environmentally friendly glitter.

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  12. Animals

    Here’s why ducklings swim in a row behind mom

    Baby ducks save energy by surfing their mother’s waves, but only if they do it in an orderly line.

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