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Experimental Procedure

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 Experimental Procedure Step 1: Begin by outlining multiple 10cm x 10cm  on a clean white cotton shirt using a marker, ensuring precision in your markings. Step 2: Carefully cut out the marked squares on the shirt, creating designated areas for stain application. Step 3: Delicately dispense 5 ml of red wine, 5 ml of coffee, and 5 grams of tomato sauce onto separate squares, ensuring even distribution for accurate stain representation. Step 4: Craft the homemade stain remover by combining a concoction of baking soda, liquid dish soap, and hydrogen peroxide in a bowl, blending the ingredients thoroughly to form a potent stain-fighting solution. Step 5: Employ three distinct stain removers—Bleach, Vanish, and a homemade stain remover—on each respective spill, allowing for a comprehensive assessment of their stain-removing capabilities. Step 6: Develop a nuanced and graded color scale for each stain remover, capturing the spectrum of stain removal effectiveness, ranging from mi...
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Conclusion

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 Conclusion After a series of tests on the effectiveness of different stain removers, namely bleach, baking soda and lemon, and soap and water, on various stains such as coffee, ketchup, and soy sauce, we have come to the realization that our hypothesis was incorrect. Bleach removes the stain but leaves a slight residue on the fabric. Baking soda and lemon worsened the stain; we tested this in two ways: firstly, by creating a homogeneous mixture of baking soda and lemon and applying it to the stain, and secondly, by applying baking soda first followed by lemon. Soap and water, which exhibited the most effectiveness, involved applying the soap, scrubbing, and then rinsing with water to remove the soap. As a recommendation, I would suggest allocating more time and organizing the process more efficiently for future experiments.
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Abstract

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 Abstract Stains are a common household challenge, but with the right approach, they can be effectively removed. This project investigates the science of stain removal by examining the reactions of different types of stains to bleach and homemade stain removers. Through carefully controlled experiments, utilizing coffee (protein-based), soy sauce (oil-based), and ketchup (pigment-based) stains, we observed the effects of bleach and homemade stain removers over time. Our results indicate that while bleach showed efficacy in some cases, homemade solutions, particularly a combination of soap and water, demonstrated superior effectiveness overall. This study provides valuable insights into the chemistry of stain removal, offering practical solutions for tackling stubborn stains in everyday life.
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Variables and Hypothesis

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  Dependent Variable: The dependent variable in this study is the effectiveness of stain removal, measured by the extent to which stains (Coffee, ketchup and soy sauce) are eliminated from fabric or surfaces. Independent Variable The independent variable is the type of stain remover used. It includes various substances such as distilled white vinegar, baking soda, lemons, hydrogen peroxide, oxygen-based bleach, borax, talc, and cornstarch. Controlled Variables To ensure the validity of the experiment, certain factors must be controlled. These include the type and amount of fabric or surface material, the duration of stain exposure, the concentration of stains, and the environmental conditions (temperature and humidity) during the experiments. Hypothesis If we use different stain removers, then some of them will be better at getting rid of stains..
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Background Research

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Big Question      How does the nature of stains (coffee, ketchup, or soy sauce) influence the effectiveness of bleach and homemade stain removers, and what chemical reactions are involved in the stain removal process? KEY WORDS Chlorine : a halogen element that is isolated as a heavy greenish yellow gas of pungent odor and is used especially as a bleach, oxidizing agent, and disinfectant in water purification. Vinegar :a sour-tasting liquid containing acetic acid, obtained by fermenting dilute alcoholic liquids, typically wine, cider, or beer, and used as a condiment or for pickling. Whitening :The active ingredient in most whitening products is hydrogen peroxide (H2O2) which is delivered as hydrogen peroxide or carbamide peroxide. Discolorize : cause to lose or change color. Disinfectant : a chemical liquid that destroys bacteria. Clorox :  blanching agent, bleach, bleaching agent, whitener. an agent that makes things white ...
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Science Fair Journal

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 Wednesday, November 1st, 2023 Today we got together and established the Big question and Background questions. Thursday, November 2nd, 2023 Today we learn how to use "Blogger" and show our logbook digitally. Tuesday, November 7th, 2023 Today we learned how to find the background research using chatgpt. We analyzed it and enhance it more. We also updated our Science fair journal draft in "Google Docs". Wednesday, November 8th, 2023 Today, we redid our background research and updated the information in our blog. Thursday, November 9th, 2023 Today we finish the first part of our logbook. We established the variables and hypothesis. we updated our blog. Tuesday, January 9th, 2024 Today we designed our project and also changed the hypothesis. Wednesday, January 10th, 2024 Today we wrote the design of our project. We research how to made a homemade stain removal. Tuesday, February 20th, 2024 Today we are making our color scale chart, and updating our blogg. Monday, March...
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