Chelsea's Crossword

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Across
  1. 4. a dark, fine-grained volcanic rock that sometimes displays a columnar structure.
  2. 5. he outermost shell of a terrestrial planet.
  3. 7. the largest layer of Earth's interior, making up approximately 84% of Earth's volume
  4. 9. part of the earth's atmosphere between the stratosphere and the thermosphere
  5. 11. is an igneous rock, which means it formed from magma, or melted rock.
  6. 12. Is a vertical transport of heat and moisture in the atmosphere
Down
  1. 1. molten rock that is underground and lava for molten rock
  2. 2. is the solid, outer part of Earth.
  3. 3. a fluid layer about 2,260 km (1,400 mi) thick, composed of mostly iron and nickel
  4. 5. The innermost part of Earth is the core and is about 1500 miles (2414 km) thick.
  5. 6. he innermost part of Earth is the core and is about 1500 miles (2414 km) thick.
  6. 8. the upper layer of the earth's mantle, below the lithosphere
  7. 10. Earth's great density comes from its rocky mantle and metallic core