G5 Science Unit 3 Review Crossword

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Across
  1. 3. lakes, deserts, and forests are examples of this
  2. 5. the main source of energy for plants
  3. 6. the practice of growing plants without soil
  4. 10. a series of organisms listed in a way that shows which is a food source for another
  5. 12. multiple connected food chains in an ecosystem
  6. 14. the sugar that is made during photosynthesis
  7. 15. the type of organism that helps return matter back to the earth
  8. 16. a type of human activity that disrupts an ecosystem
  9. 17. a single living thing
  10. 18. an organism that eats another organism
Down
  1. 1. a gas that is released during photosynthesis
  2. 2. an animal that only eats plants
  3. 4. an animal that eats other animals
  4. 7. an example of this type of organism is seaweed
  5. 8. an animal that feeds on dead or decaying matter
  6. 9. the process of converting food into energy
  7. 11. a process in which plants make energy from the sun
  8. 13. a disturbance that interrupts a process