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House vs. Pins

House vs. Pins. By: Rachel Carroll. Problem. How do regular household liquids (bleach,salt water, regular water, laundry detergent, dishwasher detergent, and Coke) effect the appearance of the safety pins?. Overview.

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House vs. Pins

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  1. House vs. Pins By: Rachel Carroll

  2. Problem • How do regular household liquids (bleach,salt water, regular water, laundry detergent, dishwasher detergent, and Coke) effect the appearance of the safety pins?

  3. Overview • I wanted to see what happened when I put safety pins in commonly used household liquids. I thought that they would become rusty or dissolve.

  4. Research • Books • Websites

  5. Variables • Independent Variable: The safety pins that were put in the bleach and Detergents • Dependent Variable: How rusty the pins are • Constant Variable: The pins that weren’t out into any liquids • Control Group:

  6. Hypothesis • The liquids (like bleach and detergents) that are used for cleaning are going to have more rust on them.

  7. Materials • Containers 100 mL of each liquid • Bleach 200 mL containers • Laundry Detergent • Dishwasher Detergent • Salt • Water • Measuring cup • Spoon (Mix Stuff)

  8. Procedure • Measure each liquid (100 mL) • Pour each liquid in container • Stir every hour • Keep in container for 4 days • Take pins out • Observe what happened over the 4 days

  9. Table

  10. Conclusion • My hypothesis was true because the cleaning liquids either were rusty or had dissolved the safety pins. I learned that safety pins are very sensitive to any type of liquid, mostly cleaning supplies and soft drinks.

  11. Errors • Water didn’t do anything • Smelled like feet • Bleach was out of control • Dishwasher detergent dried up causing lack of rust

  12. Recommendations • Should have nails instead of bobby pins • More liquids (soft drinks and Oxi Clean) • Leave in for 1 week

  13. Works Cited • Works Cited • Barnes, Linda. Hardware. New York: Delacorte, 1995. Print.Finishing.com - "The Home Page of the Finishing Industry"ｮ. Web. 9 May 2011. • <http://www.finishing.com/>."Home Decorating and Interior Design Ideas - BHG.com." Better Homes and Gardens - Home • Decorating and Remodeling Ideas, Gardening, Recipes, and More. Web. 12 May 2011. • <http://www.bhg.com/decorating/>."Nail Expirement." Science Fair Project Ideas, Answers, & Tools. Web. 12 Apr. 2011. <http://www.sciencebuddies.org/>.

  14. Thank You : )

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