Geologic Time, Geology, Watersheds

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Across
  1. 5. all water on earth
  2. 6. rocks from hot molten lava that crystalizes and solidifies
  3. 11. a land area channeling rain/snowmelt to streams, rivers to outflows like reservoirs, bays, ocean
  4. 12. all life on earth
Down
  1. 1. a thin layer of gas from the soil up
  2. 2. layer of soil surrounding the earth
  3. 3. from rock below the soil to earth's core
  4. 4. when large populations of organisms die
  5. 7. when large portions of the earth are covered by ice sheets
  6. 8. rocks created from weathering, dissolution, precipitation, and lithification
  7. 9. a mountain building event
  8. 10. rocks created from heat and pressure