[DOC] [TLE] Three Types of Rock - Rock Formed by Cooling and Hardening ... [PAR] One type of rock gets its start deep in the Earth in huge underground pockets. 
There, the rock is so hot that it melts. This molten rock, called magma, is like a 
soup... [DOC] [TLE] What is underground molten rock called? | Reference.com [PAR] Underground molten rock is referred to as magma or lava, which cools to form 
igneous rock. Igneous rock is important because it gives scientists important 
clues... [DOC] [TLE] What is the Difference Between Lava and Magma? - Universe Today [PAR] May 21, 2016 ... As a terrestrial planet, its interior is differentiated between a molten, metal core, 
and a mantle and crust ... This vicious rock usually collects in a magma chamber 
beneath a volcano, or solidify underground to form an intrusion. [DOC] [TLE] The types of rock: igneous, metarmorphic and sedimentary [PAR] Jan 12, 2015 ... It's the first thing you learn in a geology class  what are the types of rock? I'm 
gonna ... Igneous; they form from the cooling of magma deep inside the earth. 
They often ... They can form both underground and at the surface. [DOC] [TLE] Magma - Wikipedia [PAR] Magma is a mixture of molten or semi-molten rock, volatiles and solids that is 
found beneath the ... As a rock melts, its volume changes. ... During a volcanic 
eruption the magma that leaves the underground is called lava. Lava cools and... [DOC] [TLE] Magma chamber - Wikipedia [PAR] A magma chamber is a large underground pool of liquid rock found beneath the 
surface of the Earth. The molten rock in such a chamber is under great pressure,
... [DOC] [TLE] Chapter 4 Rocks and Minerals - Volcano World [PAR] The magma (molten rock under the surface) and lava (molten rock on the surface
) hardens ... Because it hardens deep underground it cools very slowly. ... One 
type of quartz is easily identified by its hexagonal crystals, but quartz can also be
... [DOC] [TLE] magma - National Geographic Society [PAR] Oct 31, 2014 ... Magma is a mixture of molten and semi-molten rock found beneath the surface of 
the Earth. ... As the liquid rock solidifies, it loses its heat to the surrounding crust. 
Much like hot .... underground reservoir that holds molten rock. [DOC] [TLE] Igneous - Learn About Rocks - Arizona State University [PAR] Plutonic rocks are formed when magma cools and solidifies underground. ... The 
type of igneous rock is also dependent on its composition (the elements that... [DOC] [TLE] Under the Earth's surface | Sciencelearn Hub [PAR] Aug 18, 2014 ... The hot, melted rock in the mantle doesn't usually make it through the many 
kilometres of crust that forms the ground we walk on. It's only at... [DOC] [TLE] Mystery of the Earth's mantle solved: Ocean crusts float at its [PAR] Dec 10, 2015 ... ... float at its 'boundary' because molten rock thickens 600 miles below the 
surface. At around 600 miles below ground, Earth's mantle behaves... [DOC] [TLE] Volcanoes: The Nature of Volcanoes [PAR] Oct 12, 1999 ... Molten rock below the surface of the Earth that rises in volcanic vents is ... tens of 
miles beneath the ground, the ascending magma commonly... [DOC] [TLE] Scientists' Drill Hits Magma: Only Third Time on Record - Phys.org [PAR] Jun 29, 2009 ... This is only the third time that magma has ever flowed into a .... found in its 
natural habitat underground  that is the central ingredient in the... [DOC] [TLE] Igneous Rocks [PAR] If magma cools deep underground under many layers of overlying sedimentary 
rock, ... The word porphyry refers to its texture or crystal size and arrangement. [DOC] [TLE] BBC Earth - Magma wells up underground waiting to erupt [PAR] Magma is a mixture of molten rock and gases below the surface of the Earth that 
... Basalt, with its fine mineral structure, cools relatively quickly after it erupts as... [DOC] [TLE] How Is Lava Created? | Wonderopolis [PAR] Scientists call this molten rock magma when it's underground. Eventually ... Deep 
below Earth's surface

Question: It's molten rock below ground
Answer: Magma