HIGH SCHOOL ACE: Challenge Yourself!

    Geology: Rocks & Minerals
Select the Matching Pairs
   
Rock that has been liquefied by heat is ____ (melted). graphite
A very light, porous, pyroclastic volcanic igneous rock is ____. hexagonal
Metamorphic rocks are created by high ____ and pressure. lava
The molten rock expelled by a volcano is called ____. molten
The minerals diamond and ____ are pure carbon allotropes. outermost
A very soft mineral (hardness 1) with a greasy feel is ____. pumice
A common igneous rock in the ____ mantle is peridotite. talc
Quartz is a mineral with a ____ crystal structure. temperature

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