The stone ages

1234567891011
Across
  1. 3. Huge stone monuments
  2. 5. ages long periods of freezing weather
  3. 6. them more useful to humans
  4. 8. people who hunt animals and gather wild
  5. 9. make them more useful to humans
  6. 10. bridge a strip of land connecting two
  7. 11. the time before there was writing
Down
  1. 1. nuts to survive
  2. 2. era the new stone age;when people learned to
  3. 4. a relative who lived in the past
  4. 6. to move to a new place
  5. 7. the process of changing plants or animals
  6. 8. an early ancestor of humans