HS-PS4-4

Evaluate the validity and reliability of claims in published materials of the effects that different frequencies of electromagnetic radiation have when absorbed by matter.

More Stories in HS-PS4-4

  1. Computing

    Fingerprints could help keep kids from dangerous websites

    A teen develops a program that estimates age based on someone’s fingers

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  2. Protecting deer with high-pitched noises

    After her uncle crashed his truck into a deer, this teen decided to find out if there was a sound that would drive the animals away from roads.

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  3. Tech

    Tweaked germs glow to pinpoint buried landmines

    Finding landmines could become much safer with a new technology. It uses genetically modified bacteria that glow under laser light.

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  4. Physics

    Weird physics warps nearby star’s light

    Scientists have observed a bizarre effect of quantum physics in light coming from a nearby neutron star.

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  5. Oceans

    Creative ways to help coral reefs recover

    Coral reefs are under siege from threats ranging from climate change to explosives. But scientists are developing ways to rebuild reefs before they disappear.

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  6. Tech

    Water sensor quickly detects algal poison

    A new sensor can detect poisons from harmful algae within minutes so that drinking-water plants can start timely treatments.

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  7. Physics

    Explainer: How heat moves

    Energy moves through the universe one of three ways: conduction, convection and radiation. Only radiation can occur through empty space.

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