The Stone Ages

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Across
  1. 2. to move to a new place
  2. 4. long periods of freezing weather
  3. 7. an early ancestor of humans
  4. 8. the new Stone age; when people started tools to create fire and use tools such as saws and drills
  5. 10. the process of changing plants or animals to make them more useful to humans
  6. 12. the middle of the Stone age; when they started using more small and complex tools
Down
  1. 1. the time before there was writing
  2. 3. a stripe of land connecting two continents
  3. 5. a relative who lived In the past
  4. 6. huge stone monuments
  5. 9. people who hunt animals and gather wild plants,seeds,fruits,and nuts to survive
  6. 11. the first part of the Stone age ; when people just started using Stone tools