Soil vs. Sand Germination Science Fair Report By Mr. Pham 3rd Period Science 3rd Trimester 2005 Robert Louis Stevenson Middle School
Introduction • Background information: a. A seed is a holding embryo of a plant. b. Germination is when a seed become a seedling. c. A seed will germinate when it has enough moisture, right temperature, oxygen, and with light or no light. 2. Problem or question to solve a. Problem: Farmer Pham wants to find the best conditions to germinate pinto beans. b. Question: Will pinto bean germinate better in natural soil or sand? 3. Hypothesis Pinto bean will sprout more and healthier in sand than natural soil.
Materials • 2 ziploc bags • 2 clear plastic cups • 20 pinto bean seeds • 200 ml of natural soil • 200 ml of sand • 100 ml water
Procedure • Get all required materials • Label zip lock bags and cups • Place 200 ml of natural soil in one cup and 200 ml of sand in another • Place 10 pinto seeds at random in each cup • Water each cup with 50 ml of water • Place the cups in the zip lock bags and observe every day
Observation & Data Pinto Bean Experiment Observation Table
Data Analysis • Based on the observation, the pinto bean seeds germinated more, faster, and healthier in natural soil than sand. • On the third day, there were 4 more germinated in natural soil than sand. Toward the end of the experiment, there were 6 more germinated in soil than sand. • Sprouts were consistently taller and greener in soil than sand through out our experiment. • We also noticed that the sand remained wetter than natural soil through out our experiment.
Conclusion • Our hypothesis was incorrect, because there were more seed germinated in natural soil than sand. • Furthermore, the sprouts were healthier in natural soil than sand. • Since sand seems to hold water more and longer than soil, the seeds were too wet. • If we were to do it again, we would make sure to keep the moisture at the same level and use more seeds. • Our new hypothesis: Pinto beans will germinate more and healthier in natural soil than sand. • Farmer Pham should use natural soil to germinate his pinto beans.
Works Cited • Seed Germination. HighBeam Research, Inc. September 22, 2005. <http://www.encyclopedia.com>
Acknowledgement & Thanks • I would like to thank myself for helping me. • My students for my inspiration