Fumaroles, often known as steam vents, are a familiar attraction at Yellowstone National Park. Steam vents are technically hot springs, but the small amount of water boils away before it reaches the surface causing extreme amounts of steam. Steam vents are known for their hissing sound, similar to that of a tea kettle.

Photograph by Debra Jones, MyShot
Our media can be used in a variety of contexts—from media spotlights to encyclopedic entries to lessons. From this page, check out the different ways you can use this .

Other Pages That Use This Item

When a Sleeping Giant Awakes
When a Sleeping Giant Awakes Article

Best For
6 - 12 and up

Earth Science, Geography

Appropriate For

  • Educators
  • Families
  • Students

Past volcanic eruptions that have taken place at Yellowstone National Park have been global disasters. Today, scientists are trying to predict how this ticking time bomb will explode—or fizzle out.