Sumer- Inventions

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Across
  1. 4. first ancient writing system
  2. 5. large pieces of cloth attatched to boats to catch the wind
  3. 7. used ti direct water to crops
  4. 8. flat boats used to float goods down a river
  5. 9. used to plant seeds in fields
  6. 10. round object used to roll things
Down
  1. 1. had 12 months and 30 days per month
  2. 2. huge seven story buildings
  3. 3. pulled behind a oxen to till soil in a field
  4. 4. water ways that bring water to the crops for irrigation
  5. 6. high walls of dirt to stop floods
  6. 8. a metal used to make tools and weapons