Water Ecosystems

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Across
  1. 4. Organisms that live in the deepest part of a body of water
  2. 7. Place where organisms are covered and uncovered daily by the waters of changing tides
  3. 8. Rivers and streams are an example of ______________ water ecosystems
Down
  1. 1. Lakes and ponds are examples of ______________ water ecosystems
  2. 2. The shallow water in standing-water ecosystems
  3. 3. The larger, active swimmers in a body of water
  4. 5. The boundary where fresh water feeds into salt water
  5. 6. Creatures that drift freely in the water