MS-PS4-2

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

  1. Food can make an appetizing science fair project

    Many students think they need a laboratory or special equipment for a winning research project. But finalists at the Broadcom MASTERS competition showed food-based research may require little more than your home kitchen

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  2. Animals

    How termites ‘hear‘ about trouble

    When danger comes too close, termites bang their heads against the walls of their homes. This action sends out a warning vibration that others ‘hear’ with their legs.

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  3. Physics

    Measure the width of your hair with a laser pointer

    You can measure the width of a human hair with the help of a laser pointer, some math and a phenomenon called diffraction.

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  4. Physics

    Comic book heroine teaches science

    Most people don’t think of superheroes as science teachers. But a comic book from the American Physical Society wants to change that. Meet Spectra, the human laser.

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  5. Health & Medicine

    Sunlight makes pleasure chemical in the body

    A day on the beach might deliver more than a tan (or sunburn). It may also release potent brain chemicals that leave people with a pleasurable feeling.

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  6. Animals

    Cool Jobs: A whale of a time

    Studying blue whales, spinner dolphins and other cetaceans demands clever ways to unveil the out-of-sight behaviors of these marine denizens.

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  7. Physics

    Hazing: How to hide in nearly plain sight

    A new system takes advantage of a translucent fog of particles to hide otherwise obvious objects.

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  8. Tech

    Digital lighting goes organic

    An environmentally friendly lighting technology promises not only to save energy but also to transform our indoor environment.

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  9. Tech

    Fighting theater pirates

    How can theaters thwart thieves from unlawfully recording a movie during a showing? A high-school freshman’s low-cost solution relies on simple physics.

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  10. Physics

    Student radiation experiment goes to space

    The Exploration Design Challenge asked students to design shields that would protect astronauts from radiation. Teachers can still involve classes in the challenge.

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  11. Physics

    World’s coolest ‘clock’ is also crazy-accurate

    This is the time to beat — the world’s most accurate atomic clock ever. At its heart is a ‘fountain’ of cesium atoms chilled nearly to absolute zero!

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  12. Physics

    Explainer: How lasers make ‘optical molasses’

    Light can bump an atom. Bump it from several different directions at once and even a fast-moving atom will instantly freeze its motion — and chill it to a temperature of nearly absolute zero.

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