HS-LS1-3

Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.

  1. Science & Society

    Introducing the 2011 Nobel Prize winners

    Scientists in 2011 won for making unexpected discoveries about crystals, the human body and the universe.

    By Stephen Ornes
  2. Health & Medicine

    Worms, your unlikely allies

    Parasites show promise in treating immune disorders.

    By Nathan Seppa
  3. Animals

    Silky spider footprints

    Tarantulas use foot-spun silk to hold tight in slippery situations.

    By Stephen Ornes
  4. Animals

    Secrets of the world’s extreme divers

    For emperor penguins and other animals, being able to hold their breath the longest could be in the blood

    By Roberta Kwok
  5. Health & Medicine

    Fat weighs heavy on the brain

    New study shows obesity interferes with memory, thinking and reasoning.

    By Stephen Ornes