Igneous Rocks

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Across
  1. 5. melting when some minerals in a rock melt while others remain solid.
  2. 6. rocks dark-colored igneous rocks with low silica content, mainly containing plagioclase and pyroxene.
  3. 8. texture a rock texture with many holes formed by trapped gas bubbles.
  4. 9. a light-colored igneous rock with high silica content, mainly made of quartz and feldspar.
  5. 11. rocks rocks formed when magma or lava cools and solidifies.
Down
  1. 1. magma that reaches Earth’s surface.
  2. 2. the size, shape, and arrangement of crystals or grains in a rock.
  3. 3. crystallization the process where different minerals crystallize from magma at different temperatures as it cools.
  4. 4. a volcanic rock formed deep in Earth’s mantle that can contain diamonds.
  5. 5. texture a rock texture with large crystals surrounded by smaller crystals.
  6. 7. igneous rocks with extremely large crystals, usually found in underground intrusions or veins.
  7. 10. reaction series the predictable order in which minerals crystallize as magma cools.