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Jillie Galasso & Emily Braddock Robert Louis Stevenson Middle School

Compost vs. Soil. Jillie Galasso & Emily Braddock Robert Louis Stevenson Middle School Advanced 7 th period, 6 th grade Mr. Pham 2010. Introduction. Background Information: Compost is an over layer, not a soil. 20-33% of potting soil is compost

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Jillie Galasso & Emily Braddock Robert Louis Stevenson Middle School

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  1. Compost vs. Soil Jillie Galasso & Emily Braddock Robert Louis Stevenson Middle School Advanced 7th period, 6th grade Mr. Pham 2010

  2. Introduction Background Information: • Compost is an over layer, not a soil. • 20-33% of potting soil is compost • The green beans should be in sun and watered everyday Hypothesis: • Our hypothesis is if you grow green beans in soil it will grow faster then green beans in compost.

  3. Introduction (continued) Controlled variables: • Amount of soil/compost • Amount of water • Plants • Same environment Experimental variables: • Soil • Compost

  4. Materials Soil • Two green bean seeds • 118.3 cc of soil • 118.3 cc of compost • 59.15 cc of water for each • 2 pots Compost Pot Water Green Beans

  5. Procedure • Pour compost into 1 of the pots • Pour soil into 1 the pots • Stick a finger in each pot to make a hole • Open the bag of green bean seeds • Put two seeds in each hole • Cover the seeds with soil for the pot with soil in it • Cover the seeds with compost for the pot with compost in them

  6. Observation & Data

  7. Data Graph

  8. Data Analysis • We took 2 pots, one with soil and one with compost. 2 seeds in each pot to grow. • We watered it every day, and it grew! Patterns: • Compost: grew 1.5” every other day. Then on the last day it grew 11.5”. • Soil: it grew 8” every other day. Observation: • We had it at Emily's house for most of the time, then Jillie took it to her house the compost grew 3 times more than at Emily's house.

  9. Conclusion Our hypothesis was correct! If we grew the compost before we grew the soil maybe it would have grown better. We have discovered that people should not use compost as potting soil for green beans.

  10. Work-cited & Acknowledgment • Compost As A Potting Soil. 12/1/10. http://www.p2pays.org/ref/05/04068.pdf • Green Beans N’ More. 12/1/10. http://www.greenbeansnmore.com/how-to-grow-green-beans.html

  11. Work-cited & Acknowledgment Emily and Jillie would like to thank….. • Mr. Pham for helping us with the PowerPoint • Our parents for us buy the materials, and letting us work at each others houses.

  12. From: Emily & Jillie THANKS FOR WATCHING!!!

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