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Bottle Biology Project
Transcript of Bottle Biology Project
By Ruby Stone-French Background:
The way our bottle biology system worked was we took different aspects of an ecosystem and put them all together to create one that was full. The way we create this diverse ecosystem is by making different sections that contribute. The first section of the biology column is the very top which forms the base for the entire ecosystem. The top section is the compost section, in which you take your compost and feed it into the part of the bottle designated for it and bacteria breaks down your old fruits and vegetables etc. to create nutrients for the soil it drips down into in the second column. The second section of our bottle biology ecosystem is the plant growth section in which the nutrients from the compost section go into the soil to help the plants grow. This section is used mostly to provide oxygen to the water via the photosynthesis of the plants. Compost Plant Growth Fish, Duckweed, and Elodea The third section of the bottle biology ecosystem is the section that consists of the 2 gambusia fish, 2 elodea plants, 1 duckweed, and 4 snails. The oxygen from the plants in the section above it makes it so there is oxygen in the water and that way the fish can survive. The snails eat the algae waste so the sides of the makeshift "tank" stay clean and you can easily view the fish. The duckweed and elodea also help to produce oxygen in the water. Terraqua To create the bottle biology system we used simple 2 liter soda/carbonated water bottles and cut and taped them together to create a simple relatively simple column. We added different sections to the different parts of the column (as shown in previous paragraphs) to create a mini ecosystem.
We used Gambuzia fish because they have a reputation of living longer and we wanted to choose the fish with the stronger immune system so it would have a longer lifespan. Compost Column Details The compost column did decompose very quickly, it seemed. We had orange peels, potatoes, mushrooms, and coffee grounds. We had very little to no fruitflies because we drilled very small holes in the sides of the bottle which made it so it was very difficult for the fruit flies to enter the compost section.
Organisms in Terraqua The organisms in the terraqua pretty much all died off. The fish died from excessive amounts of ammonia caused by waste such as excrement/over feeding/decaying plants which is toxic in amounts of over 1 parts per million. Mold Types There were three basic types of mold:
Ascomycetes Mold Conclusion Overall, the things that I would change throughout my bottle biology project is that I would not use coffee grounds in the compost next time because it causes the water to darken quicker and also, I would add more water because at the time I wasn't expecting evaporation to occur which it did and it affected my terraqua by making it so the growth section grow due to the water not being able to be drawn up the string and help the moisture retain soil. My advice to future students doing this project is to be very careful about what you put in the compost section of your bottle biology ecosystem. Slime Mold Rhizopus Mold The End