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Tuesday, June 18, 2013
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NetWellness is a global, community service providing quality, unbiased health information from our partner university faculty. NetWellness is commercial-free and does not accept advertising.
Tuesday, June 18, 2013
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Dental Hygiene |
Science Fair01/06/2005 |
Hello. I am doing a scince fair project on Which Toothpaste Removes Stains the best. I have all of my testing done and I have my lab report done also. I have e-mailed you previously. My experiment was done by hard-boiling 6 eggs, staining them in different liquids, and brushing them with 5 different toothpastes. I didn`t know what my control or "controlled variable would be. My question is ... What would be the controlled variable in my experiment? (I know what the variable is... the different toothpastes) Thank you very much for your time. Your generosity is appreciated greatly!
Your control would be brushing with just plain water. Let me know how it goes!
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Michele P Carr, RDH, MA Associate Professor of Dental Hygiene Associate Professor of HS Nursing Quality & Research College of Dentistry The Ohio State University |
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