The Stone Ages

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Across
  1. 2. a strip of land connecting two continents
  2. 4. to move to a new place
  3. 7. the first part of the Stone Age; when people used Stone tools
  4. 10. long periods of freezing weather
  5. 11. an early ancester of humans
  6. 12. a relative who lived in the past
Down
  1. 1. the Stone Age; when people learned to make fire and tools such as sawa and drills
  2. 3. the process of changing plants or animals to make them more useful to humans
  3. 5. the time before there was writing
  4. 6. people who hunt animals and gather wild plants, seeds, fruits, and nuts to survive
  5. 8. the middle of the Stone Aged; marked by the creation of smaller and more complex tools
  6. 9. huge stone mountains