Considering your exploration of ecosystems throughout the unit, what factors do you believe contribute to pleasant pond turning green? Discuss what you learned about the 4 matter cycles and energy transfer.Mention Photosynthesis’ role in these processesÂ
Fertilizer runoff causes algal blooms which makes ponds turn green. I learned how the cycles connect to photosynthesis like for example in the carbon cycle animals breathe in air and breathe out carbon dioxide and that is later used in photosynthesis. In the hydrologic cycle when precipitation occurs it is collected into lakes and photosynthesis also needs water to happen. I also learned that when theres a good amount of fertilizer it helps the ponds but when theres too much it can kill all the marine life.
Energy transfer is when the primary consumer eats the producer and only gets 10% of its energy. Like for example the producer has 1000kCAL then the primary consumer will have 100kCAL and the secondary consumer will have 10kCAL and the tertiary consumer will have only 1kCAL.
Think back to your ecosystem in a bottle variable change (you changed 1 variable in your bottle by adding plants, blowing into the bottle, or adding fertilizer). Did the prediction you make come true?Â
Our prediction was that more algal blooms would grow and because of that the dissolved oxygen in the bottle would be lower. We also predicted that when the algae would die the decomposers would use up all the oxygen in the bottle which would kill all the animals there. Our prediction came true because now there are algal blooms in our bottle but all our fish and tadpole died before we could see if the algae would kill them.


If you could improve ONE aspect of your learning in this unit as a whole, what would it be and why? Provide a change that could enhance future learning experiences.
I think that i would improve in keeping my notes more organized and to make better use of my class time. If I would keep my notes more organized I could understand the topic and unit more and if I didn’t understand something I would be able to find it in my notes. And If I made better use of class time I could finish a lot of things on time and would not have to do it at home.







