By Julia DeVincenzi and Tatyana Dunn

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The Effects of Different Growing Mediums on Pinto
Bean Germination

• By Julia DeVincenzi and Tatyana Dunn
• 6th grade, 1st quarter
• Robert Louis Stevenson Middle School

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Introduction

• Background information
• What are seeds?
• A seed is part of a plant that produces a
  new plant.
• 2. Describe the process of germination.
• The process of germination is when a seed
  sprouts and grows.
• 3. What are the conditions that can cause a seed
  to germinate?
• The conditions are water, warmth and oxygen.

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Introduction (continued)

• Question What is the fastest way to germinate
  pinto beans in the greatest amount?
• Hypothesis If we germinate pinto beans using
  rocks, soil from RLS campus, compost and paper
  towels we think the compost will grow faster
  healthier and in a greater amount.
• Experimental variables Rocks, paper towels,
  compost and RLS soil
• Constant variables water, cups, pinto beans and
  holes on bottom of cup

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Materials

• 4 cups
• 250 ml of Rocks
• 250 ml of RLS soil
• 250 ml of Compost
• 3 Paper towels
• 15-20 ml of Water
• Beaker to water cups
• 40 Pinto beans
• Label for each cup

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Procedure

• a. gather all required materials
• b. label cups to what you put in it
• c. fill one cup with 3 paper towels and 10 pinto
  beans
• d. fill one cup with 250 ml of rocks and 10 pinto
  beans
• e. fill one cup with 250 ml of compost and 10
  pinto beans
• f. fill one cup with 250 ml of RLS soil and 10
  pinto beans
• g. water all cups 15-20 ml.
• h. observe growing patterns
• i. conclusion (accept or reject
• hypothesis)
• j. share discovery

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Observation and data
Date Soil Compost Rocks Paper towel
10/12 0 germination Dark brown and spotted, shaped like a kidney, hard, smooth, dry 0 germination Dark brown and spotted, shaped like a kidney, hard, smooth, dry 0 germination Dark brown and spotted, shaped like a kidney, hard, smooth, dry 0 germination Dark brown and spotted, shaped like a kidney, hard, smooth, dry
10/14 0 germination Beans are pink with brown spots, top layer of soil is moist, bottom is dry 0 germination Beans are squishy, pink and brown beans, somewhat moist 0 germination Rocks and seeds are moist and beans are still hard, pink, brown spots 0 germination Beans are squishy, pink with brown spots, paper towels are moist
10/16 5 germination 5 have white sprouts, 4 have white lines, nearly germinated, 1 not g. 6 germination 6 seeds have white sprouts, four are squishy but not germinated 4 germination 4 seeds show sprouts, 1 seed has white lines, 5 seeds not germinated 9 germination 9 have white sprouts, 1 seed is cracked
10/19 9 germinated 1 broken/ squished 6 germination Roots are not big, 4 havent g. ,squishy 4 germination All show green, 1 almost g, 5 not g. ,some crushed 9 germination big roots, 1 not g. / partly crushed or cracked
10/21 9 germination 1 has a leaf, 1 is missing, all have big roots 6 germination 1 is missing, 3 not germinated at all, 5 germination 4 have not germinated, 1 is crushed 9 germination 1 cracked, all but 1 show big roots
10/23 9 germination 5 have leaves, 1 is missing 6 germination 3 not germinating, 1 is missing 4 germination 1 is missing, 5 not germinating 10 germination All are sprouting, even the one that is cracked

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Number of germination graph
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Data Analysis

• a. The paper towels germinated the most, the
  rocks the least and the soil 9 and compost 6
• b. Paper towels sprouted all ten beans
• c. The paper towels had healthier (greener)
  sprouts
• d. We thought the compost would work best but it
  only germinated 6 beans

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Conclusion

• 1.Our hypothesis was incorrect because the paper
  towels sprouted more then the compost.
• 2. Something that could have affected our
  experiment was the amount we watered each cup.
• 3. If we were to do it again we would have been
  sure about the amount we watered them.
• 4.Our recommendation to Farmer Pham would be to
  begin to plant your beans in paper towels then
  move them into regular soil.

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Acknowledgements and thanks
Work-Cited Di Michele, William A. seed. World
Book Advanced. World Book, 2009.web. Keating,
Richard C. Germination. World Book Advanced.
World Book, 2009. web. Special thanks Farmer
Pham, Tatyana Dunn, Julia DeVincenzi
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THANK YOU FOR LISTENING
By Julia DeVincenzi and Tatyana Dunn