Scientists Say

A weekly word defined, in a sentence and in context.

  1. Health & Medicine

    Scientists Say: Bruxism

    Some people clench their jaw when their stressed. People who do it a lot may have bruxism.

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  2. Health & Medicine

    Scientists Say: Tinnitus

    Ever had ringing in your ears? Tinnitus is a condition in which you hear a persistent sound that isn’t there.

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  3. Health & Medicine

    Scientists Say: Insulin

    This chemical is a lifesaver. It helps our bodies use the sugars from our food, and without it, people develop diabetes.

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  4. Chemistry

    Scientists Say: Sublimation

    Matter doesn’t always go from solid to liquid to gas. Sometimes it skips a step.

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  5. Chemistry

    Scientists Say: Surface tension

    Surface tension is what makes water in your glass seem like it’s covered by an invisible membrane holding it together.

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  6. Genetics

    Scientists Say: eDNA

    Animals may escape traps or nets, but they often leave DNA behind in their environment, giving scientists important clues.

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  7. Physics

    Scientists Say: Diffraction

    When liquid hits something it spatters, when light hits something, it scatters. The process is called diffraction.

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  8. Chemistry

    Scientists Say: Unsaturated fat

    These fats are found in foods like olive oil. It’s their special bonds that make them go with the flow.

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  9. Planets

    Scientists Say: Proxima b

    A new planet outside our solar system is only 4.2 light years away.

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  10. Health & Medicine

    Scientists Say: Saturated fat

    Saturated fats are found in meat and dairy products. Their long, straight chemical chains make them solid in your fridge and on your plate.

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  11. Space

    Scientists Say: Proxima Centauri

    The nearest star to our sun is only 4.2 light-years away.

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  12. Chemistry

    Scientists Say: Fatty acid

    Fats are important, especially fatty acids. These molecules serve many purposes, but they are all constructed the same way.

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