MS-PS1-2

Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.

More Stories in MS-PS1-2

  1. Chemistry

    Scientists Say: Catalyst

    Sometimes a chemical reaction can take a while. If speed is needed, a catalyst can help.

    By
  2. Environment

    Trees can make summer ozone levels much worse

    The greenery can release chemicals into the air that react with combustion pollutants to make ozone. And trees release more of those chemicals where it gets really hot, a new study finds.

    By
  3. Chemistry

    BPA-free plastic may host BPA-like chemical, teen finds

    Something has to replace the BPA in ‘BPA-free’ plastics. A teen has been probing what that is.

    By
  4. Health & Medicine

    This mix turns pink when sunscreen wears thin

    Many people know to put on sunscreen. Remembering to put more on is harder. A teen invented an indicator that glows pink when it’s time to reapply.

    By
  5. Physics

    After 30 years, this supernova is still sharing secrets

    It’s been 30 years since astronomers first witnessed the stellar explosion known as SN 1987A. Today, researchers are still learning from this cataclysmic phenomenon.

    By
  6. Planets

    How Earth got its moon

    How did our moon form? Scientists are still debating the answer. It may be the result of some one big impact with Earth — or perhaps many small ones.

    By
  7. Animals

    Cool Jobs: A world aglow

    Three scientists probe how the natural world makes light, in hopes of using this information to design new and better products.

    By