[DOC] [TLE] Igneous Rocks [PAR] Intrusive rocks come from magma. They cool slowly deep in Earth's crust. ... Extrusive igneous rocks come from lava. Lava, at the surface, is exposed to air and water which causes the molten rock to cool rapidly. [DOC] [TLE] Rocks - body, water, process, Earth, type, chemical, form, carbon, air [PAR] Igneous rock: Rock formed from the cooling and hardening of magma. Lava: 
Molten rock that occurs at the surface of Earth, usually through volcanic eruptions
. ... Mineral: A naturally occurring, inorganic substance with a definite chemical ... 
and their own weight causes them to compress and harden into sedimentary rock
. [DOC] [TLE] Interactives . The Rock Cycle . How Rocks Change [PAR] You'd cool it by putting it into the refrigerator until it hardens. ... Any rock that 
forms from the cooling of magma is an igneous rock. ... within the earth and 
explodes out of a volcano, it is called lava, and it cools quickly on the surface. ... 
This magma will also cool, but at a much slower rate than lava erupting from a 
volcano. [DOC] [TLE] Igneous rocks form from molten rock. [PAR] Igneous rocks form from molten rock, but where does molten rock ... Molten rock 
that reaches Earth's surface is called lava. An igneous rock is ... mineral crystals 
form as molten rock freezes into solid rock. ... the high temperatures allow magma 
to cool slowly ... substances that have similar textures, such as sugar and salt. [DOC] [TLE] Igneous Rocks, Born of Fire - ScienceIQ.com [PAR] Rocks are naturally occurring solid mixtures of substances primarily made of 
minerals. ... Igneous rock forms when molten rock, either magma or lava, cools to 
a solid. ... Lava flowing over the surface hardens into a dark rock called basalt. ... 
Some of the exploded lava globules cool so quickly that no crystals can form... [DOC] [TLE] Igneous Rocks - ScienceViews.com [PAR] Both magma and lava cool and harden to form igneous rocks. Intrusive vs. 
Extrusive. Igneous rocks can be classified into two main categories: intrusive and 
... at the surface, is exposed to air and water which causes the molten rock to cool
... [DOC] [TLE] magma - National Geographic Society [PAR] Oct 31, 2014 ... Magma exists as pockets and plumes beneath the surface of the Earth. ... lava. 
Magma that has cooled into a solid is called igneous rock. ... This heat makes 
magma a very fluid and dynamic substance, able to create new ... Magma can 
also be created when hot, liquid rock intrudes into Earth's cold crust. [DOC] [TLE] Chapter 4 Rocks and Minerals - Volcano World [PAR] The magma (molten rock under the surface) and lava (molten rock on the ... 
Granite is an igneous rock that is composed of four minerals. ... Quartz can be 
broken or weathered into the tiny pieces we know as sand. ... Quartz is a mineral 
made from one substance SiO2 (Silicon Oxide) that has a definite chemical 
composition. [DOC] [TLE] High School Earth Science/Types of Rocks - Wikibooks, open books ... [PAR] This lesson will discuss the characteristics of rocks, how rocks are classified, and 
... Igneous Rocks - form when magma (molten rock inside the Earth) or lava ... 
Crystallization occurs when molten material hardens into a rock. ... Pieces of rock 
at Earth's surface are constantly worn down into smaller and smaller pieces. [DOC] [TLE] Chapter 2: Igneous Rocks [PAR] Molten rock below the Earth's surface is called magma. Molten ... Igneous rocks 
form through the process of crystallization as a magma or lava cools and hardens 
into a solid mass. Between the temperature of 1800C, above which mineral 
structures can ... Igneous rocks containing visible crystals formed from slow-
cooling. [DOC] [TLE] The Basics of Rocks and Minerals and Polar Geology  Rocks and ... [PAR] If all four of the criteria are not met, the substance is not a mineral. ... Because any 
mineral can be any color, you cannot use color alone to identify a mineral. ... 
Igneous rocks form when magma or lava cools

Question: This molten substance can surface as lava, or cool & harden into igneous rock
Answer: Magma