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Science Stack-Gabby
Question | Answer |
---|---|
Foliated | When mineral grains line up in parallel layers. |
Basaltic | Describes dense dark-colored igneous rock formed from magma rich in magnesium and iron and poor in silica. |
Granitic | Describes generally light-colored silica rich igneous rock that is less dense than basaltic rock. |
Lava | Molten rock that flows from volcanoes onto Earth's surface. |
Igneous rock | Rock formed when magma or lava cools and hardens. |
Intrusive | Describes a type of igneous rock that generally contains large crystals and forms when magma cools slowly beneath Earth's surface. |
Non-foliated | Mineral grains grow and rearrange but they dont form layers. |
Metamorphic rock | Rocks that have changed because of changes in temperature and pressure or the presence of hot, watery fluids. |
Extrusive | Describes fine-grained igneous rock that forms when magma cools quickly at or near Earth's surface. |
Rock | A mixture of such minerals rock fragments, volcanic glass organic matter or other natural materials. |
Rock cycle | To show how rocks slowly change through time. |
Sediments | Loose materials such as rock fragments, mineral grains, and bits fo shell that have been moved by wind, water, ice, or gravity. |
Sedimentary rock | Forms when sedements are pressed and cemented together, or when minerals form from solutions |
Compaction | When small sediments stick together and form solid rock. |
Cementation | The resulting solution of water and dissolved materials moves through open spaces between sediments. |