Earth Science: Geysers of the United States Quiz

Geysers are amazing things. Where volcanoes erupted in the past, spewing out molten rock, now there are geysers. These hot spots on the earth's crust still spew, but now it is geysers, of steam, water, and sometimes mud. Geysers appear as regular as clockwork in some places, and in others without warning. Take this quiz to test your knowledge of Geysers of the United States.