Classifying Rocks
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| A metamorphic rock is melted completely, then cooled becomes an ______ rock. | igneous
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| A Sedimentary rock changes shape under heat and pressure, but does not melt completely becomes a _____ rock. | metamorphic
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| When sandstone, a sedimentary rock, is exposed to extreme _____ and pressure, it will become a metamorphic rock. | heat
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| ______ is the process of changing volcanic rock by water. | erosion
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| Melting, _____, and weathering change metamorphic rock into magma. | cooling
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| Metamorphic rocks form from _____ rock that has been changed by extreme heat and pressure. | existing
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| When lava cools very slowly, ______ crystals will form on the rock. | large
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| Over time, particles are compressed and form ______ rock. | sedimentary
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| Pressure is released until external air _____ is greater than internal pressure, causing the system to become stable, is how the Earth's equilibrium is restored after a volcanic eruption. | pressure
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| To explain the relationship between limestone and the oceans is that ______ matter settles on the bottom of the ocean and is formed into limestone. | organic
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| The primary process that turns ______ into sedimentary rocks is that the upper layers of sediment pressing down on lower layers of deposited sediment. | sediments
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| The most common rock found on the crust is ______. | granite
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| Weathering of existing ______ is one of the early steps in the formation of sedimentary rock. | rock
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| The interlocking crystals of an igneous rock help to _____ it since the crystals are a result of melted rock that cooled. | classify
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| When igneous rocks are _____ and the fragments are deposited, can change igneous rock into sedimentary rock. | weathered
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| Sedimentary rocks often contain ______ layers because they were formed by the deposition of layers of sediment. | horizontal
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| An igneous rock, must have formed from ______ rock changing its physical state. | liquid
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| Geologists might recognize a metamorphic rock by _____, wavy layers that were caused by pressure and heat. | distorted
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| Sedimentary rock is _____ formed by melting rock. | not
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| Metamorphic and igneous rocks have ______ formation in that both require extreme heat to form. | similar
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Created by:
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