science crossword puzzle

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Across
  1. 4. Europeans that crossed the Atlantic ocean.
  2. 5. Modern Humans.
  3. 10. Historical human made object.
  4. 12. The process used to put the hole in a spear.
  5. 14. Theory for how people got to North America.
  6. 15. What we evolved from
  7. 17. A migration path that connected alaska to russia.
  8. 18. Were known for making spearheads.
Down
  1. 1. Stage before the neanderthals
  2. 2. How Spearheads are made.
  3. 3. The step of human evolution before us.
  4. 4. the tool neanderthals used to hunt with.
  5. 5. Like a theory.
  6. 6. Most controversial Hypothesis.
  7. 7. Cave where Neanderthals were found
  8. 8. A large land bridge that connected Asia and North America
  9. 9. a large, slow-moving body of ice formed from compacted snow
  10. 11. 6-7 year old paleoindian child
  11. 13. Where the climate plummeted to a deep freeze.
  12. 16. 1-2 year old child found in montana.