HS-LS2-4

Use a mathematical representation to support claims for the cycling of matter and flow of energy among organisms in an ecosystem.

  1. Animals

    An energy lesson from panda poop

    Scientists say microbes in panda feces may help convert grasses into fuel.

    By Stephen Ornes
  2. Environment

    Swirling seas of plastic trash

    Long-lasting oceanic garbage threatens marine life.

    By Amanda Rose Martinez