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. Microbes

    Let’s learn about microbes

    There may be a billion species of microorganisms on Earth — but scientists have only discovered a small fraction of them.

    By
  2. Earth

    ‘Tree farts’ make up about a fifth of greenhouse gases from ghost forests

    Heat-trapping gases from dead trees play an important role in the environmental impact of “ghost” forests.

    By
  3. Animals

    Explainer: What are cicadas?

    There are more than 3,000 species of cicadas, but the best known in North America are periodical cicadas, which emerge every 13 or 17 years.

    By
  4. Agriculture

    Healthy soils are life-giving black gold

    Scientists explain why everyone needs to value the soils beneath our feet — and why we should not view them as dirt.

    By
  5. Agriculture

    Soil (and its inhabitants) by the numbers

    Teeming with life, soils have more going on than most of us realize.

    By
  6. Environment

    What you can do to improve soils

    Soils are the life-sustaining structures under our feet. Here are some tips for keeping soils healthy. First rule of thumb: Give more than you take.

    By
  7. Animals

    Choked by bacteria, some starfish are turning to goo

    For years, researchers thought gooey, dying starfish were infected. Instead, these sea stars are suffocating. And bacteria may be behind it all.

    By
  8. Agriculture

    Dew collector brings water to thirsty plants

    This invention grabs water from the air at night. All it needs is the sun’s warmth the next day to release that moisture to growing plants.

    By
  9. Plants

    How to grow your own science experiment

    Does fertilizer help plants grow better? You might expect it to, but how can you know? This experiment will help you test it yourself.

    By