Stonehenge Crossword Puzzle

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Across
  1. 3. a system of math having to do with shapes and 3D objects.
  2. 4. extraterrestrial being.
  3. 7. a group believed to have worked on Stonehenge, they built other significant works on windmill hill.
  4. 9. a group of people believed to have worked on Stonehenge, who buried their dead with artifacts such as pottery.
  5. 10. a group of people believed to have worked on stonehenge, they were very advanced and skillfull traders.
  6. 11. the science that deals with the material universe beyond the earth's atmosphere.
  7. 12. before recorded history.
  8. 15. idea formed by speculation.
  9. 16. system of calculating year.
Down
  1. 1. a prehistoric monument on Salisbury Plain.
  2. 2. of, pertaining to, or characteristic of the last phase of the Stone Age.
  3. 5. extraordinarily good: exciting admiration or amazement by virtue of being outstandingly good, effective, or unusual.
  4. 6. this is the plain that Stonehenge was built.
  5. 8. a stone of great size, especially in ancient construction work.
  6. 13. the country in which Stonehenge was built.
  7. 14. a prehistoric structure consisting of two upright stones supporting a horizontal stone.