Lily's AIM crossword puzzle

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Across
  1. 3. - a large environment full of different flora and fauna
  2. 4. - a civilization located in the middle of lake Texcoco, known for their agriculture and architecture
  3. 5. - the ____ civilization was built in the Andies mountains
  4. 6. - an innovative weapon used to achieve and greater velocity, similar to a spear-thrower
  5. 8. - diverse civilizations that shared similar cultural characteristics in the geographic areas
Down
  1. 1. - a period of low rain, leading to a shortage of water
  2. 2. - when some civilizations have sloped environments, they use a process of cultivating crops on the sides of hills or mountains by planting on graduated ___ carved into the slope
  3. 4. - the study of excavating material remains to better understand a civilizaion
  4. 7. - the ___ were an advanced mesoamerican civilization that developed the science of astronomy, calendars and hieroglyphic writing
  5. 9. - a city created by the