MS-LS2-3

Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.

More Stories in MS-LS2-3

  1. Life

    Explainer: Prokaryotes and Eukaryotes

    Prokaryotes tend to be small and simple, while eukaryotes have embraced a highly organized lifestyle. These divergent approaches to life have both proved very successful.

    By
  2. Oceans

    Small swimmers may play huge role in churning the seas

    Hoards of migrating shrimp and krill can cause large-scale water movements in the ocean, a new study suggests.

    By
  3. Plants

    Explainer: The fertilizing power of N and P

    Two elements — nitrogen and phosphorus — help plants grow. When the soil doesn’t have them, farmers might add them in the form of fertilizer.

    By
  4. Animals

    Bee hotels are open for business

    Bee hotels are creating a buzz in conservation and research by offering nesting places for wild bees.

    By
  5. 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
  6. Microbes

    World’s deepest zoo harbors clues to extraterrestrial life

    Scientists have found a wide range of life deep below Earth’s surface. The discoveries could help inform our search for life on other planets.

    By
  7. Science & Society

    Cool Jobs: New tools to solve crimes

    Future investigators may identify criminals by the microbes they leave behind or by using DNA-like evidence from strands of their hair.

    By