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Duckweed Growth Experiment: Influencing Factors and Interactions in Water Types

Explore the impact of fertilizer and water type on duckweed growth levels in a controlled laboratory setting using a two-factor ANOVA. Participants will set up experiments with 16 duckweed per cup, testing tap water, pond water, high/low fertilizer, and ash levels. Teams of 1-3 will collect data over two weeks for analysis and write a short scientific paper with sections on Introduction, Methods, Results, and Discussion due in early April.

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Duckweed Growth Experiment: Influencing Factors and Interactions in Water Types

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  1. Duckweed Experiment: Multiple Levels of TWO Factors

  2. YES

  3. NO

  4. 16 Duckweed per Cup

  5. Tap Water Pond Water No Ash Ash

  6. High Fertilizer No Fertilizer Low Fertilizer Tap Water Pond Water

  7. Two-Factor Analysis of Variance (ANOVA) MAIN EFFECTS (= Individual Effects) Fertilizer Water Type INTERACTION EFFECT (= Synergistic or Inhibitory Effects) Fertilizer x Water Type

  8. Lab Next Week • 1-3 People per Team • Collect Data over Two Weeks • Data Analysis • Short Scientific Paper with four sections (Introduction, Methods, Results, Discussion) due early April)

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