HS-ESS2-1

Develop a model to illustrate how Earth's internal and surface processes operate at different spatial and temporal scales to form continental and ocean-floor features.

  1. Animals

    Ants aweigh!

    In a flood, fire ants cling together to keep afloat.

    By Stephen Ornes
  2. Space

    Black hole journey

    Research on weird, invisible objects called black holes might help explain how the universe began.

    By Emily Sohn
  3. Earth

    Digging into a tsunami disaster

    A powerful earthquake under the Indian Ocean changed Earth's surface and spin.

    By Emily Sohn
  4. Earth

    A volcano wakes up

    Earthquakes, small eruptions, and a new lava dome unsettle Mount St. Helens.

    By Kate Ramsayer
  5. Earth

    Distant quake changes geyser eruptions

    An Alaskan earthquake changed the timing of geysers thousands of miles away.

    By Emily Sohn
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