"Big History"

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Across
  1. 7. Very important.
  2. 10. The ability of humans to work together to maintain, create, and pass on knowledge.
  3. 13. The ability to grow food or crops for human use.
  4. 15. Big + wide
  5. 16. The smallest unit of matter.
Down
  1. 1. A name for our species of "wise humans."
  2. 2. A level or limit.
  3. 3. The force that pulls two objects toward each other.
  4. 4. The moment the universe started, according to scientists.
  5. 5. Complicatedness, intricacy. The quality of not being easily simplified into smaller parts.
  6. 6. The group of mammals that includes humans and chimpanzees.
  7. 8. The measuring of passing from parent to children/offspring.
  8. 9. To look for food in the wild, without growing or hunting.
  9. 11. An uneven group or cluster or matter.
  10. 12. To comprehend or understand; It can also mean to hold.
  11. 14. A small unit used to count or measure things like sand, rice, or corn.