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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.
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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.
Background Information • What is Aspirin? • How to Find the Concentration of Aspirin • Best Environment • Tomato (Lycopersicon esculentum)
Design Diagram Title: The Effect of Aspirin Concentrated Water on the Growth of Plants Hypothesis: If an aspirin concentration of water is increased, then plants will grow at a slower rate. IV : Aspirin Concentration of Water
Design Diagram (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
Materials • Miracle Grow Soil • Tomato Plant Seeds • Water • 40 100 mL pots • Cups • Aspirin • Ruler • Clock • Mortar • Pestle • Scale • Spoon • Graduated Cylinder (100 ML)
Procedure • 1) 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.
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.
Safety Cautions • Do Not Consume Any Materials Used in this Experiment!
Average 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
Statistical 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
Statistical Analysis (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
Statistical Analysis (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
Conclusions • Results support hypothesis • Experiment shows significant results based on statistical analysis.
Types of Errors • Initial Planting Procedure • Inconsistent Watering of Plants • Different Environments
Improvements • Keep all constants as “constant” as possible • More trials • Longer Experiment Time • Precise measurements
Extensions / Applications • Experiment with other common medicines. • Be aware of where I dispose of medicine. • Prevent others from making the same mistake.
Acknowledgements • Mom and Dad • Mrs. Pietrangelo • Ms. Paine
Bibliography • 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.