Early human puzzle

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Across
  1. 4. We are this early human
  2. 7. The very first early human
  3. 8. The second part of the stone age
  4. 9. The first part of the stone age
  5. 10. A trading system
Down
  1. 1. Turning plants or animals to be useful to humans
  2. 2. The last part of the stone age
  3. 3. The first early human to make tools
  4. 5. A early human village
  5. 6. The first early human to be discovered by humans