Pond in a jar presentation
Transcript of Pond in a jar presentation
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Section 4 Group 5Anna Beth Reardon Cari AinsworthBrandon Weatherford Jesus GarciaElijah Colvin
Pond in a Jar Experiment
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Hypothesis
Listerine, an antiseptic, will inhibit all living organisms from growing, while oats and fertilizer will initiate the growth of the respective organisms that feed on them.
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Materials
Pea gravel
Tap water
De-chlorinator
Aquatic plant
Pond Water
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Observations Smell
Clarity of Water
pH
Mold Growth
Algae Growth
Plant Growth
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Procedure Jar 1A: Add fertilizer
Jar 1B: Add fertilizer and Listerine
Jar 2A: Add organic matter
Jar 2B: Add organic matter and Listerine
Jar 3A: Add fertilizer and organic matter
Jar 3B: Add fertilizer, organic matter, and Listerine
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Jar 1A
Week 1 Week 4 Week 8
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Jar 1A
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Jar 1A
Oedogonium Attached to aquatic
plants
Reproduce sexually/asexually
Euchlanis Omnivorous
Use cilia and two strong toes to move
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Jar 1B
Week 1 Week 4 Week 8
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Jar 1B
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Jar 1B
Paramecium Reproduce by
binary fission
Herbivore
Protozoa Most are motile
Reproduce sexually/asexually
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Jar 2A
Week 1 Week 4 Week 8
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Jar 2A
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Jar 2A
Oedogonium 250 different
species
Attached to aquatic vegetation
Vegetative Cell
Diatoms & Ankistrodes
mus Yellow-green chloroplasts
Pen-shaped and cylinder
Green algae group/Toxin
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Jar 2B
Week 1 Week 4 Week 8
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Jar 2B
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Jar 2BAphanizome
non Blue-green algae
Very toxic
Stomach irritation
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Jar 3A
Week 1 Week 4 Week 8
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Jar 3A
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Jar 3A
Protozoa Single celled protists
Heterotrophic
Mobile
Vaucheria Yellow-green algae
Found everywhere
Long branching filaments
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Jar 3B
Week 1 Week 4 Week 8
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Jar 3B
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Jar 3B
Diatom Unicellular and
symmetric
Have hard skeletons
Found in plankton
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Conclusion Our original hypothesis was correct and incorrect at
the same time. Our original hypothesis was that if we tend to the jars, and insert the fertilizer, organic matter, and unknown (Listerine) into their respective jars, then we would stimulate various forms of life within the six different jars, as well as potentially killing the life with the unknown. In the end, the Listerine did not kill off most life as it was expected to. There were various forms of life even in the jars with no Listerine. We did, however, stimulate life with our organic matter and fertilizer. Some of the jars ended up with physids, and multiple different microscopic organisms.
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Conclusion The only thing we may would need to do
differently is add more control to the jars by visiting them more than just once a week. In that way, we could potentially figure out what exactly is happening to the jars at a given day of the week.
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Questions
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Sources Egmond, Wim V. "Microscopy-UK Micscape
Microscopy and Microscopes Magazine." Microscopy-UK Micscape Microscopy and Microscopes Magazine. N.p., n.d. Web. 29 Apr. 2011
"Ankistrodesmus Sp. (NADED 261004)." Ankistrodesmus Sp. (NADED 261004). N.p., n.d. Web. 29 Apr. 2013
"Aphanizomenon Flos-Aquae Side Effects." LIVESTRONG.COM. N.p., n.d. Web. 29 Apr. 2013