Geysers Flashcards
1
Q
What are geysers?
A
They’re a type of hot spring where hot water and steam are ejected from the surface in a fountain
2
Q
How do geysers occur? 3
A
The groundwater is heated to above boiling point by magma deep in the crust.
The hot water becomes pressurized and forces its way to the surface along cracks in the rocks.
Finally the hot water and steam spray out a vent
3
Q
Why do geysers erupt periodically?
A
They only erupt when the pressure has built up enough to force the water out of the ground
4
Q
Give two examples of geysers
A
Strokkur (Iceland) and Old Faithful in Yellowstone National Park (USA)
5
Q
Where do geysers form?
A
In areas of intense volcanic activity
