Scientists Say

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

  1. Animals

    Scientists Say: Dung

    This word is used to refer to animal poop. You know, manure. Crap. Feces.

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  2. Physics

    Scientists Say: Refraction

    Light or sound may bend as it travels from one medium, such as air, to another, such as water. This bending is called refraction.

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  3. Climate

    Scientists Say: Weather bomb

    Weather doesn’t just affect the air. Huge storms can send waves of pressure through the Earth as well.

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  4. Chemistry

    Scientists Say: Capsaicin

    This chemical is produced by pepper plants and gives them their hot flavor.

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  5. Chemistry

    Scientists Say: Graphene

    This is a single layer of carbon atoms, linked to each other in a flat sheet. It’s super strong, super flexible and conducts current, too.

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  6. Animals

    Scientists Say: Dire wolf

    Dire wolves are an extinct species of wolf that roamed North America from about 300,000 to 12,000 years ago.

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  7. Space

    Scientists Say: Transit

    When an object in space passes in front of a star and looks big enough to block out all the light, it’s an eclipse. When it’s smaller, it’s called a transit.

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  8. Life

    Scientists Say: Histology

    When scientists study the parts of an animal or plant, they are studying anatomy. When they need a microscope to see the details of that anatomy, they are studying histology.

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  9. Earth

    Scientists Say: Ozone

    Ozone is a molecule made of three oxygen atoms. In a layer above the Earth, it protects us from harmful radiation, but too close to home, it can harm our health.

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  10. Earth

    Scientists Say: Speleology

    This is the scientific study of caves, which can include what they’re made of, how they form and what lives in them.

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  11. Agriculture

    Scientists Say: Domestication

    Domestication is the process of deliberately taking a wild organism — a plant or animal for instance — and making it a part of our daily lives.

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  12. Microbes

    Scientists Say: Biofilm

    When times get tough, some microbes like to stick together. They form a mass stuck to a surface, called a biofilm.

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