Mesopotamia Crossword

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Across
  1. 4. this made mesopotamia really fertile by spreading silt
  2. 5. the tool that helped with farming
  3. 7. The process of melting materials and making metal
  4. 8. The two most important rivers in Mesopotamia that provided freshish water (put and in between words)
Down
  1. 1. The mountain range that provides the only other source of freshish water
  2. 2. Mesopotamia's system of writing
  3. 3. Mesopotamia's meaning
  4. 6. The guy that made the worlds first standing army