HS-PS3-2

Develop and use models to illustrate that energy at the macroscopic scale can be accounted for as either motions of particles or energy stored in fields.

More Stories in HS-PS3-2

  1. Physics

    Scientists Say: Voltage

    Voltage is a measure of how much electricity is available to power devices.

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  2. Physics

    Scientists Say: Radiation

    Radiation is the motion of energy through space as waves or particles.

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  3. Animals

    Analyze This: Ropes restore a gibbon highway through a rainforest

    When endangered Hainan gibbons started making risky leaps across an area mowed down by a landslide, researchers provided them a rope bridge.

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  4. Climate

    Let’s learn about solar power

    Solar power is a way to harness energy from the sun, and lessen our reliance on fossil fuels.

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  5. Materials Science

    Will bacterial ‘wires’ one day power your phone?

    An accidental discovery helps scientists generate electricity out of thin —but humid — air with bacteria-made protein nanowires.

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  6. Physics

    A contrast between shadows and light can now generate electricity

    A new device exploits the contrast between bright spots and shade to produce a current that can power small electronics.

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  7. Planets

    Glass beads help scientists puzzle out how baby planets grow

    Researchers have mimicked the first stages of planet formation in the lab. All they needed were glass beads and a catapult.

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  8. Materials Science

    The future of crystal-based solar energy just got brighter

    Researchers have upped the efficiency of layered solar cells that could be printed or painted onto surfaces. Now they are working to make them more rugged.

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  9. Chemistry

    Explainer: What are acids and bases?

    These chemistry terms tell us if a molecule is more likely to give up a proton or pick up a new one.

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