MS-PS4-2

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

More Stories in MS-PS4-2

  1. Physics

    Muons reveal the inner worlds of pyramids, volcanoes and more

    Tracking these subatomic particles can uncover surprising hidden structures.

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  2. Space

    Gravitational waves ‘kicked’ a newborn black hole across space

    Two black holes merged into one, and then sped off at around 5 million kilometers (3.1 million miles) per hour.

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  3. Space

    Some of the sun’s iconic coronal loops may be ghostly illusions

    Wrinkles in the sun’s outer atmosphere might trick the eye into seeing glowing arches, scientists now report.

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  4. Space

    We finally have an image of the black hole at the heart of our galaxy

    New observations from the Event Horizon Telescope reveal the chaotic region around the Milky Way’s central black hole, Sagittarius A*, in extreme detail.

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  5. Planets

    Analyze This: Some 5,000 planets orbit stars other than our sun

    A new cache of confirmed exoplanet discoveries marks a milestone in planets found beyond our solar system.

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  6. Tech

    This sun-powered system delivers energy as it pulls water from the air

    The device not only produces electricity but also harvests water for drinking or crops. It could be especially useful in remote and dry parts of the world.

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  7. Materials Science

    This new fabric can ‘hear’ sounds or broadcast them

    With special fibers that convert tiny vibrations to voltages, a new fabric senses sound. Someday, such fabrics could monitor the body or aid hearing.

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  8. Oceans

    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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  9. Materials Science

    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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