Making a Model of
a Closed Ecosystem

 

Getting Hooked on Ecojars

Building an Ecojar

Task 4: Chemical and Biological Analysis of the Ecojar
  1. Each time the Ecojar is analyzed, the roles must be rotated.
    The PM becomes CLT; CLT becomes BLT and BLT becomes PM.
    arrows showing order or changes from PM, CLT and BLT
  2. Continue switching roles until your data collection is completed.
  3. Refer to Steps For Success Ecojar Checklist and complete the appropriate portion.
Task 5: Dismantling the Ecojar
  1. At the end of this activity, every member of the group is responsible for dismantling and cleaning the Ecojar.
  2. Return guppies, snails and plants into the location designated by your teacher.
  3. Using a strainer, rinse the gravel several times with tap water and return to the designated container.
  4. Remove the label, clean and dry the 4L container that served as the Ecojar. Return the container and lid to the appropriate location.
  5. Complete Self-Assessment
  6. Refer to Steps For Success Ecojar Checklist and complete the appropriate portion.
  7. Return your folder to the teacher.
Task 6: Not Another Fish Story - Your Conclusions, Analysis and Applying Your Knowledge Section
  1. Everyone in the group must complete their own conclusions, and analysis. See Table 5. Also complete the Applying Your Knowledge questions.
  2. Refer to Steps For Success Ecojar Checklist and complete the appropriate portion.
  3. Return the completed folder with everyone’s work to the teacher.