Great lakes

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Across
  1. 3. the largest, deepest, and coldest lake
  2. 6. Shallowest lake
  3. 7. this lake has about 3000 islands
  4. 8. 6,000 of these are preserved in the depths of the lakes.
  5. 10. 11,000 miles of ____ if u added all the lakes together
  6. 12. lake that was frozen over 5 times in history
  7. 14. an invasive species that is disrupting the food web
  8. 15. water without salt
Down
  1. 1. Completely inside the US
  2. 2. slabs of ice carved that out the Great Lakes basins
  3. 4. The "sea monster" often reported in Lake Erie.
  4. 5. largest city on lake michigan
  5. 9. abbreviation for great lakes
  6. 11. A parasitic fish that invaded the upper lakes.
  7. 13. The world-famous falls that connect Lake Erie and Lake Ontario