earth and space science

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Across
  1. 3. Any size group of interacting parts that form a complex whole.
  2. 4. The 4th step of the Nebular Theory.
  3. 7. Everything that surrounds and influences an organism.
  4. 9. The thin, rocky outer layer of Earth.
  5. 10. The study of the earth
  6. 12. they study of the oceans
  7. 13. The innermost layer of Earth, located beneath the mantle.
  8. 14. The water portion of Earth.
  9. 15. The 2nd step of the Nebular Theory.Closed closed System Matter does not leave or enter the system, but energy does.
Down
  1. 1. A well-established, reliable explanation of a natural or physical phenomenon.
  2. 2. The thin, gaseous envelope that surrounds Earth
  3. 5. The parts of the solid Earth, hydrosphere, and atmosphere in which living organisms can be found.
  4. 6. The 1st step of the Nebular Theory.
  5. 8. The study of the atmosphere and the processes that produce weather and climate.
  6. 11. A scientific explanation for a set of observations that can be tested in ways that support or reject it.