Scientists Say

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

  1. Earth

    Scientists Say: Humidity

    Feel sticky when you step outside on a summer day? Blame humidity — water in the air.

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  2. Genetics

    Scientists Say: DNA

    Short for deoxyribonucleic acid, DNA is the molecule that determines how each living thing looks and works.

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  3. Psychology

    Scientists Say: Trauma

    No one experiences trauma the same way. Its effects can be physical or emotional. Immediate or delayed. Brief or long-lasting.

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  4. Chemistry

    Scientists Say: Pigment

    From fruits to fur to fine art, many materials get their colors from compounds called pigments.

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  5. Physics

    Scientists Say: Proton

    These positively charged particles are important building blocks in atoms.

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  6. Planets

    Scientists Say: Habitable Zone

    The habitable zone is the region around a star where temperatures could be right for worlds to host liquid water.

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  7. Computing

    Scientists Say: Supercomputer

    These ultrafast computers perform complex calculations for research on cancer, quantum physics and more.

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  8. Tech

    Scientists Say: Virtual reality

    Virtual reality is an immersive, 3-D artificial environment created by a computer.

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  9. Earth

    Scientists Say: Fault

    A fault is a crack in Earth’s crust where pieces of rock scrape past each other.

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  10. Humans

    Scientists Say: Denisovan

    The Denisovans were a recently discovered population of ancient hominids.

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  11. Physics

    Scientists Say: Inertia

    Inertia is the tendency of objects to resist changes in their motion.

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  12. Materials Science

    Scientists Say: Silicone

    Silicone is a generic term for a whole slew of humanmade polymers with many different forms and applications.

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