NATURAL NAVIGATION

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Across
  1. 2. Covered with clouds; lacking clear skies.
  2. 4. The star at the center of our solar system that provides light and heat to Earth.
  3. 6. A visual representation of an area, typically showing geographical features, roads, and other landmarks.
  4. 7. Parallel to the horizon; flat or level.
  5. 11. Half of the Earth, usually divided into Northern and Southern Hemispheres or Eastern and Western Hemispheres.
  6. 13. after To take care of or watch over someone or something.
  7. 16. To recognize the value or significance of something; to be grateful for.
  8. 17. for: To look for something by making an effort to find it.
Down
  1. 1. The natural satellite of Earth that orbits around it.
  2. 3. A course along which someone or something moves or points.
  3. 4. Having balanced proportions; exhibiting symmetry.
  4. 5. Divisions or offshoots of a tree or plant.
  5. 8. Used to emphasize a statement or confirm its truth.
  6. 9. Confused or lost in terms of direction or understanding.
  7. 10. Networks of threads spun by spiders and other insects to catch prey.
  8. 12. The region of the atmosphere above the Earth; where the sun, moon, stars, and clouds are seen.
  9. 14. Those from whom a person is descended, typically one's parents or grandparents.
  10. 15. Having a moderate degree of heat; opposite of cold.
  11. 18. To set up or create something, typically an organization, system, or set of rules.