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. Space

    Wild art? No, it’s a radio image of the heart of our Milky Way

    Eyelash-like radio filaments accent the brightest feature in this image — a supermassive black hole.

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  2. Life

    Living mysteries: Why teeny-weeny tardigrades are tough as nails

    Tardigrades often live in cool, damp moss. Their cushy life has somehow prepared them to survive the lethal radiation of outer space.

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  3. Space

    Explainer: Telescopes see light — and sometimes ancient history

    Different kinds of telescopes on Earth and in space help us to see all wavelengths of light. Some can even peer billions of years back in time.

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  4. Space

    The long-awaited James Webb Space Telescope has a big to-do list

    The James Webb Space Telescope has been in the works for so long that new fields of science have emerged for it to study.

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  5. Space

    Let’s learn about auroras

    A gust of charged particles from the sun called the solar wind lights up auroras on Earth — and on other planets.

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  6. Chemistry

    Chemistry solves a French royal mystery

    Ink analysis reveals the hidden words of Marie Antoinette's letters and who tried to hide them.

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  7. Space

    Explainer: How auroras light up the sky

    The northern and southern lights are considered natural wonders of the world. Here’s how these and related splendid sky glows form.

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  8. Physics

    Nuclear clocks are nearly here

    More precise clocks could improve technologies such as GPS and help scientists test major ideas in science.

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  9. Space

    Light from space has record-breaking energy

    Hundreds of newly detected gamma rays hint at environments in the cosmos that accelerate particles to energy extremes.

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