Across
- 3. bowl-shaped area
- 7. farming method in which a plot of land is burned before being used
- 8. artificial island built by the Aztecs
Down
- 1. colorful tropical bird
- 2. a wall to hold back water
- 4. a canal or pipe the carries fresh water
- 5. building for observing the sky
- 6. symbol that stands for a word, idea, or sound