the effect of aspirin concentrated water on the growth of plants
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The Effect of Aspirin Concentrated Water on the Growth of Plants. Tim Ko. Problem Statement. Will the presence of aspirin concentrated water in soil affect the growth of plants?. Hypothesis. If an aspirin concentration of water is increased, then plants will grow at a slower rate. - PowerPoint PPT PresentationTRANSCRIPT
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The Effect of Aspirin The Effect of Aspirin Concentrated Water on the Concentrated Water on the
Growth of Plants Growth of Plants
Tim Ko
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Problem StatementProblem Statement
Will the presence of aspirin concentrated water in soil affect the growth of plants?
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HypothesisHypothesis
If an aspirin concentration of water is increased, then plants will grow at a slower rate.
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Background Background InformationInformation
What is Aspirin?
How to Find the Concentration of Aspirin
Best Environment
Tomato (Lycopersicon esculentum)
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Design DiagramDesign DiagramTitle: The Effect of Aspirin Concentrated Water on the Growth of PlantsHypothesis: If an aspirin concentration of water is increased, then plants will grow at a slower rate.IV : Aspirin Concentration of Water
LevelsWater (0 g/L)
- control5 g/L 10 g/L 15 g/L
Trials 10 10 10 10
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Design Diagram Design Diagram (cont.)(cont.)
DV: Height of Plants (cm)
CONSTANTS: type of soil, amount of soil, type of pots, water (tap), amount of water, type of plant, same environment, planting procedure, depth of seed, same type of aspirin
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MaterialsMaterials Miracle Grow Soil
Tomato Plant Seeds
Water
40 100 mL pots
Cups
Aspirin
Ruler
Clock
Mortar
Pestle
Scale
Spoon
Graduated Cylinder (100 ML)
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ProcedureProcedure1) Plant 40 pots of tomato plants.
2) Label 10 of the pots ‘control’ and label 10 of the pots for each IV (5 g/L, 10 g/L, 15 g/L)
3) For 10 of the pots, water daily with 20 mL of tap water (control).
4) Dissolve aspirin (5 g, 10 g, 15 g) in 1 liter of water.
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Procedure (cont.)Procedure (cont.)
5) Water respectively with 20 mL of water.
6) Observe and record the growth of the plants for 4 weeks.
7) Record observations in a data table.
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Safety CautionsSafety Cautions
Do Not Consume Any Materials Used in this Experiment!
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Before the ExperimentBefore the Experiment
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During the ExperimentDuring the Experiment
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After the ExperimentAfter the Experiment
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ResultsResultsTrials
Control (cm)
5 g/L (cm) 10 g/L (cm) 15 g/L (cm)
1 7.4 3.6 2 0
2 12.9 4.2 2.6 0
3 10.1 2.4 1.5 0
4 10.2 2.6 0.4 0
5 8.4 2.2 1.6 0
6 8.5 3.8 1.8 0
7 8.3 4.3 0.8 0.2
8 8 3.7 2.1 0
9 7.6 3.3 0.9 0
10 8.3 2.9 0.2 0.3
Average 8.97 3.3 1.39 0.05
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Average CalculationsAverage Calculations Control : 7.4 + 12.9 + 10.1 + 10.2 + 8.4 +
8.5 + 8.3 + 8 + 7.6 + 8.3 = 89.7 / 10 = 8.97
5 g/L : 3.6 + 4.2 + 2.4 + 2.6 + 2.2 + 3.8 + 4.3 + 3.7 + 3.3 + 2.9 = 33 / 10 = 3.3
10 g/L : 2 + 2.6 + 1.5 + 0.4 + 1.6 + 1.8 + 0.8 + 2.1 + 0.9 + 0.2 = 14 / 10 = 1.39
15 g/L : 0 + 0 + 0 + 0 + 0 + 0 + 0.2 + 0 + 0 + 0.3 = .5 / 10 = .05
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Results (cont.)Results (cont.)
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Statistical Statistical Analysis(ANOVA)Analysis(ANOVA)Control : 7.4 + 12.9 + 10.1 + 10.2 + 8.4 +
8.5 + 8.3 + 8 + 7.6 + 8.3 = 89.7 / 10 = 9
5 g/L : 3.6 + 4.2 + 2.4 + 2.6 + 2.2 + 3.8 + 4.3 + 3.7 + 3.3 + 2.9 = 33 / 10 = 3.3
10 g/L : 2 + 2.6 + 1.5 + 0.4 + 1.6 + 1.8 + 0.8 + 2.1 + 0.9 + 0.2 = 14 / 10 = 1.4
15 g/L : 0 + 0 + 0 + 0 + 0 + 0 + 0.2 + 0 + 0 + 0.3 = .5 / 10 = .05
Control 5 g/L 10 g/L 15 g/L
Mean 8.97 cm 3.3 cm 1.39 cm 0.05 cm
Sample Size
10 10 10 10
Standard Deviation
1.665 0.744 0.785 0.108
# of groups
4 4 4 4
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Statistical Analysis Statistical Analysis (cont.)(cont.)
5 g/L : 3.6 + 4.2 + 2.4 + 2.6 + 2.2 + 3.8 + 4.3 + 3.7 + 3.3 + 2.9 = 33 / 10 = 3.3
10 g/L : 2 + 2.6 + 1.5 + 0.4 + 1.6 + 1.8 + 0.8 + 2.1 + 0.9 + 0.2 = 14 / 10 = 1.4
15 g/L : 0 + 0 + 0 + 0 + 0 + 0 + 0.2 + 0 + 0 + 0.3 = .5 / 10 = .05
Source of Variation
Sum of Squares
Degrees of Freedom
Mean Square
F-test Statistic
Aspirin Concentration
SSTR = 462.94
3 MSTR = 154.31
FData = 160.74
Error SSE = 35.58
37 MSE = .96
Total SST = 498.52
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Statistical Analysis Statistical Analysis (cont.)(cont.) Total Sample Size = 40
Avg of All plants = 3.428 cm
SSTR = 10(8.97 - 3.428)2 + 10(3.3 - 3.428)2 + 10(1.39 - 3.428)2 + 10(.05 - 3.428)2 = 462.94
SSE = 9(1.665)2 + 9(.744)2 + 9(.785)2 + 9(.108)2 = 35.58
SST = 462.94 + 35.58 = 498.52
MSTR = 462.94/3 = 154.31
MSE = 35.58/37 = .96
F-value = 154.31/.96 = 160.74
Critical Value = 2.79
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ConclusionsConclusions
Results support hypothesis
Experiment shows significant results based on statistical analysis.
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Types of ErrorsTypes of Errors
Initial Planting Procedure
Inconsistent Watering of Plants
Different Environments
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ImprovementsImprovements
Keep all constants as “constant” as possible
More trials
Longer Experiment Time
Precise measurements
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Extensions / Extensions / ApplicationsApplications Experiment with other common medicines.
Be aware of where I dispose of medicine.
Prevent others from making the same mistake.
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Acknowledgements Acknowledgements
Mom and Dad
Mrs. Pietrangelo
Ms. Paine
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BibliographyBibliography Armstrong, W. P. "Tomato, Tomatillo, Eggplant, Nipplefruit & Chayote." WAYNE'S
WORD. 03 Apr. 2008. Web. 05 Oct. 2010.
"Calculations of Solution Concentration." Sciencegeek.net. Web. 05 Oct. 2010.
Campbell, Neil A., Lawrence G. Mitchell, Jane B. Reece, and Martha R. Taylor. Biology Concepts & Connections. 4th ed. San Francisco: Benjamin Cummings, 2003. Print.
"Great Plant Escape - Growing Plants Indoors." University of Illinois Extension-Urban Programs Resource Network - University of Illinois at Urbana-Champaign. Web. 05 Oct. 2010.
Nordqvist, Christian. "What Is Aspirin? What Is Aspirin For?" Medical News Today: Health News. 20 Aug. 2009. Web. 05 Oct. 2010.
"Plant Structure and Function." University of Illinois at Chicago - UIC. Web. 05 Oct. 2010.