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Grade 6 CH 3

Rocks

QuestionAnswer
Dark dense, dark-colored rocks that are rich in iron and magnesium. BASALTIC
Solution of water and dissolved materials minerals move through open spaces between sediment acting as a natural cement. CEMENTATION
Sediments are being pushed together in layers and forming solid rock. COMPACTION
Lava flowing on Earth’s surface forming rocks. EXTRUSIVE
Mineral grains lining up in parallel layers in metamorphic rocks. FOLIATED
Light-colored rocks of low density rich in silica. GRANITIC
Hot magma cools and hots. IGNEOUS ROCK
Rocks that form from magma inside the Earth. INTRUSIVE
Rocks that have changed because of changes in temperature & pressure of hot watery fluids. METAMORPHIC ROCK
Mineral grains grow and rearrange, but do not form layers in metamorphic rocks. NONFOLIATED
Mixture of such minerals, rock fragments, volcanic glass, organic matter, or other natural materials. ROCK
A model of how rocks slowly change through time. ROCK CYCLE
Loose materials such as rock fragments, mineral grains, and bits of shell moved by wind, water, ice, or gravity. SEDIMENT
Sediments pressed and cemented together, or when minerals form from solutions. SEDIMENTARY ROCK
Magma reaching Earth’s surface and flows from volcanoes. LAVA
Created by: Bridgerdon
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