MS-PS4-2

Develop and use a model to describe that waves are reflected, absorbed, or transmitted through various materials.

More Stories in MS-PS4-2

  1. Physics

    Getting cozy with a science experiment

    Items you use in your home can inspire a scientific experiment.

    By
  2. Planets

    Signs of a hidden Planet Nine in our solar system may be an illusion

    Hints of the remote planet, also called Planet X, relied on clumped up orbits of bodies beyond Neptune. A new study suggests that clumping doesn’t exist.

    By
  3. Physics

    Scientists Say: Radiation

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

    By
  4. Environment

    COVID-19 cut pollution in 2020, warming the atmosphere

    Pandemic-related lockdowns briefly warmed the planet. The reason: The cleaner air carried fewer planet-cooling aerosols.

    By
  5. Earth

    Fin whales could help scientists map what lies below the seafloor

    Fin-whale calls are loud enough to penetrate into Earth’s crust, offering scientists a new way to study the properties of the ocean floor.

    By
  6. Science & Society

    New technology can get inside your head. Are you ready?

    New technologies aim to listen to — and maybe even change — your brain activity. But just because scientists can do this, should they?

    By
  7. Physics

    Scientists Say: Piezoelectric

    Piezoelectric materials produce an electric voltage when they are bent or squished. This can let us harvest electricity from movement.

    By
  8. Physics

    Physicists have clocked the shortest time span ever

    The experiment revealed how long it takes light to cross a hydrogen molecule: just a couple hundred zeptoseconds.

    By
  9. Physics

    What did you say? Fabric masks can really muffle voices

    Some types of face masks muffle speech more than others — something that teachers should take into account.

    By