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Pond in a Jar Experiment

Section 4 Group 5

Anna Beth Reardon
Brandon Weatherford
Elijah Colvin

Cari Ainsworth
Jesus Garcia
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.
Materials
 Pea gravel
 Tap water
 De-chlorinator
 Aquatic plant

 Pond Water
Observations
 Smell
 Clarity of Water

 pH
 Mold Growth

 Algae Growth
 Plant Growth
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
Jar 1A
Week 1

Week 4

Week 8
Jar 1A
Jar 1A
Oedogonium
 Attached to aquatic

plants
 Reproduce

sexually/asexually

Euchlanis
 Omnivorous

 Use cilia and two strong

toes to move
Jar 1B
Week 1

Week 4

Week 8
Jar 1B
Jar 1B
Paramecium
 Reproduce by binary

fission
 Herbivore

Protozoa
 Most are motile

 Reproduce

sexually/asexually
Jar 2A
Week 1

Week 4

Week 8
Jar 2A
Jar 2A
Oedogonium
 250 different species

 Attached to aquatic

vegetation
 Vegetative Cell

Diatoms &
Ankistrodesmus

 Yellow-green

chloroplasts
 Pen-shaped and cylinder
 Green algae group/Toxin
Jar 2B
Week 1

Week 4

Week 8
Jar 2B
Jar 2B
Aphanizomenon
 Blue-green algae

 Very toxic
 Stomach irritation
Jar 3A
Week 1

Week 4

Week 8
Jar 3A
Jar 3A
Protozoa

Vaucheria

 Single celled protists

 Yellow-green algae

 Heterotrophic

 Found everywhere

 Mobile

 Long branching filaments
Jar 3B
Week 1

Week 4

Week 8
Jar 3B
Jar 3B
Diatom
 Unicellular and symmetric
 Have hard skeletons
 Found in plankton
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.
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.
Questions
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

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Pond in a jar presentation

  • 1. Pond in a Jar Experiment Section 4 Group 5 Anna Beth Reardon Brandon Weatherford Elijah Colvin Cari Ainsworth Jesus Garcia
  • 2. 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.
  • 3. Materials  Pea gravel  Tap water  De-chlorinator  Aquatic plant  Pond Water
  • 4. Observations  Smell  Clarity of Water  pH  Mold Growth  Algae Growth  Plant Growth
  • 5. 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
  • 8. Jar 1A Oedogonium  Attached to aquatic plants  Reproduce sexually/asexually Euchlanis  Omnivorous  Use cilia and two strong toes to move
  • 11. Jar 1B Paramecium  Reproduce by binary fission  Herbivore Protozoa  Most are motile  Reproduce sexually/asexually
  • 14. Jar 2A Oedogonium  250 different species  Attached to aquatic vegetation  Vegetative Cell Diatoms & Ankistrodesmus  Yellow-green chloroplasts  Pen-shaped and cylinder  Green algae group/Toxin
  • 17. Jar 2B Aphanizomenon  Blue-green algae  Very toxic  Stomach irritation
  • 20. Jar 3A Protozoa Vaucheria  Single celled protists  Yellow-green algae  Heterotrophic  Found everywhere  Mobile  Long branching filaments
  • 23. Jar 3B Diatom  Unicellular and symmetric  Have hard skeletons  Found in plankton
  • 24. 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.
  • 25. 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.
  • 27. 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