[DOC] [TLE] Geyser - Wikipedia [PAR] A geyser is a spring characterized by intermittent discharge of water ejected 
turbulently and accompanied by steam. ... Geyser activity, like all hot spring 
activity, is caused by surface water gradually seeping ... With this release of 
pressure, the superheated water flashes into steam, boiling violently throughout 
the column. [DOC] [TLE] Hot Springs and Geysers - Water Encyclopedia [PAR] The water ejected during each eruption is at or near the boiling point, often ... 
Plenty of water must be available nearby to form a geyser or a hot spring. 
Scientists can perform many different tests on the composition of water to 
determine its origin. ... the ones in Yellowstone National Park lie above what are 
called "hot spots. [DOC] [TLE] Geyser and Hot Spring - The shape of the land, Forces and changes ... [PAR] Every volcano on the planet owes its name to this small volcanic island. ... A 
geyser is considered a type of hot spring, which is a pool of hot water that ... 
Normal hot springs do not erupt, but may seem to churn and "boil" as gases ... 
Fumaroles are also known as steam vents because the most common gas they 
emit is water... [DOC] [TLE] What is a Geyser? | Geyser Pictures & Video | Hot Water! [PAR] A geyser is a vent in Earth's surface that periodically ejects a column of hot water 
and steam. ... Mickey Hot Springs, Oregon ... The most famous, named "Old 
Faithful" in recognition of its regular eruptions, is located in Yellowstone National 
Park (USA) and erupts ... Steam is produced when water is heated to its boiling 
point. [DOC] [TLE] Letting Off Steam [PAR] Most of the water ejected by yellowstone's hot ... the water sits in underground 
caves called ... pushes its way up through openings, and, as ... the water begins 
to boil. ... of water. yellowstone contains more than 10,000 geysers, hot springs, 
and... [DOC] [TLE] 3.  Hot springs, mud pools and geysers  Te Ara Encyclopedia of ... [PAR] Jun 12, 2006 ... Story: Hot springs, mud pools and geysers ... hot springs which intermittently eject 
jets of boiling water and steam into the air. ... The water in the reservoir becomes 
highly pressurised and superheated above its boiling point. ... Originally it was 
known as the Indicator, as it normally played shortly before... [DOC] [TLE] Geysir - Geology on Postage Stamps [PAR] Gas emissions are called fumaroles; if the gas is sulphurous they are called ... 
The dynamic hot springs that intermittently eject a column of water and steam into 
... Its jet of water can be 30-50 metres high but powerful geysir with jets of water of 
... The sudden decrease of pressure in the vent lowers the water's boiling point... [DOC] [TLE] Geysers & Other Geothermal Activity - Home Science Tools [PAR] But besides volcanoes, lava, and ash, Earth's internal heat makes its way to the ... 
Hot springs, geysers, fumaroles, and mud pots are all geothermal features. ... As 
it rises, the pressure becomes less and less, and the water starts to boil and 
steam ... causing the lower water to also be ejected out of the mouth of the geyser
. [DOC] [TLE] Geysers in the United States - Fact Monster [PAR] There are 120 named geysers in Yellowstone National Park, Wyoming, and ... 
Most of the geysers and the 4,000 or more hot springs are located in the ... 
Midway Geyser Basin has vast steaming terraces of red, orange, pink and ... 
Excelsior crater discharges boiling water into Firehole River at the rate of 6 cu. ft. 
per second. [DOC] [TLE] geyser | geology | Britannica.com [PAR] Aug 26, 2015 ... Hot spring that intermittently spouts jets of steam and hot water. The term ... This 
chain reaction continues until the geyser exhausts its supply of boiling water. 
Geysers ... As water is ejected from geysers and is cooled, dissolved silica is 
precipitated in mounds on the surface. This material is known as sinter. [DOC] [TLE] volcano - Hot springs and geysers | geology | Britannica.com [PAR] Sep 26

Question: When a hot spring ejects steam & boiling water it's called this
Answer: Geyser