4th six weeks choice board

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Across
  1. 3. natural system
  2. 5. Plants turn sunlight to sugar
  3. 6. dry, rural area
  4. 8. multiple organisms living in one system interdependent or interrelate
  5. 9. a group of ecosystems
  6. 10. swampy area
  7. 12. transforming energy
Down
  1. 1. the opposite of mechanical energy
  2. 2. light energy radiating
  3. 4. number of people in one area
  4. 7. little to no water area
  5. 11. ability work