Hanna+Kulavic

__Different Brands of Bleach and Their Effect on Grape Juice Stains__

Problem: What brand of bleach had the best results on the grape juice stain? (The problem should not be in the past tense -Mitch Spencer)

Background: A chemist from Sweden discovered chlorine gas around 1784 and was successful when showing how it could be used for decolorizing vegetable dyes. Shipping liquid chlorine bleaches were developed after World War II. Chlorine is a major ingredient in the majority of bleaches sold in the United States, around 80%. Other types of bleaches can include hydrogen peroxide and oxygen based bleaches.The experiment will test only non chlorine based bleaches in my experiment. "In my experiment" is not needed because you said "The experiment". Allie Faivre  This is when chlorine based bleaches became popular. Research shows that chlorine is actually not the best way of effective bleaching. "best way of effective bleaching" is somewhat redundant. I think you meant something else, but the wording is confusing. Allie Faivre You might want to elaborate on this and tell us why chlorine is not best. Back up your statements. - Alysa Buck Tide uses alternatives such as enzymes and polymers. Chlorine based bleaches often can produce unreliable results when it comes to laundry. Again why do they produce unreliable results. Are you saying that using enzymes and polymers in bleach is better than chlorine based? So tide is a better brand? This part is very confusing, try to go into more depth to clear it up. -Alysa Buck  As of right now chemists in the laundry business are working to produce an oxygen based bleach. This bleach can be safer on products and making items long lasting. Try and elaborate on some of your statements, make sure you are giving us enough information on the topic so as we can understand why and how the topic is both relevant and related to your experiment. - Alysa Buck Hypothesis: If I use the brand Clorox bleach, then the grape juice stained shirt will be at the lowest quantity on the whiteness scale. What is the "whiteness scale" is this going to be your qualitative data or your quantitative data? (Alex Wiegand)

Materials: T-shirts(5)-$13.96 Grape Juice-$4.98 Bleach- Clorox-$3.50, generic-$2.50, Tide-$9.97 Scale-$207.00 Thermometer-$5.50 Stopwatch-$13.25 Beakers(3)-$9.00 <span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 16px; vertical-align: baseline;">Sink with running water-In lab <span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 16px; vertical-align: baseline;">Blow Dryer-$8.58 <span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 16px; vertical-align: baseline;">Goggles-$5.05

<span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 16px; line-height: 1.5;">Total price for experiment: $283.29

(You have "whiteness scale" in your hypothesis but not in your materials. Is this an actual physical object? Be sure to explain what you mean by whiteness scale. -Mitch Spencer) <span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 16px; vertical-align: baseline;">Methods: <span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 16px; vertical-align: baseline;">1. Put safety goggles on. You might want to think of wearing gloves as well when working with bleach as bleach is corrosive. - Alysa Buck <span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 16px; vertical-align: baseline;">2. First put 4 shirts out on the lab table. "First" is not needed because you have it in a numbered list. Allie Faivre <span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 16px; vertical-align: baseline;">3.Measure the amount of grape juice (2 oz) with the scale. You should measure this out using the beaker/graduated cylinder (Alex Wiegand) <span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 16px; vertical-align: baseline;">4. Spread the grape juice on all 4 of the T-shirts. Are you going to make sure you spread it all the same way? Sarah Beth <span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 16px; vertical-align: baseline;">5. Let the stain dry in room temperature overnight. <span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 16px; vertical-align: baseline;">6. Measure bleaches (8 oz) each and put into beakers next to the shirts. <span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 16px; vertical-align: baseline;">7. Put one of the shirts with the stain to the side, this will be the control. <span style="background-color: #ffffff; color: #b50fff; font-family: Georgia,serif; font-size: 16px; vertical-align: baseline;">"This will be the control" should either be a separate sentence or separated by a semicolon. Allie Faivre <span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 16px; vertical-align: baseline;">8. Fill the lab sink with cold water at 70 degrees Fahrenheit measure temperature with the thermometer. <span style="background-color: #ffffff; color: #b50fff; font-family: Georgia,serif; font-size: 16px; vertical-align: baseline;">"Measure temperature..." is a separate sentence. Allie Faivre <span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 16px; vertical-align: baseline;">9. Put the bleach on Shirt 1. <span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 16px; vertical-align: baseline;">10. Let the shirt sit with the bleach on it for 1 minute before putting directly into the cold water. How are you measure what is actually cold and what is not? Is it going to be a specific temperature? Sarah Beth <span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 16px; vertical-align: baseline;">11. Let the shirt stay in the water for 4 minutes. How will you make sure the water does heat up during those 4 minutes? <span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 16px; vertical-align: baseline;">12. Take the shirt out of the water and wring it out before drying with a hair dryer. <span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 16px; vertical-align: baseline;">13. Repeat the steps 4-10 for the other 2 bleaches. <span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 16px; vertical-align: baseline;">14. Analyze and keep track of each stain before, during, and after the bleach is added. <span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 16px; vertical-align: baseline;">15. Record the diameter of the initial stain also the final stain using the whiteness scale. <span style="background-color: #ffffff; color: #b50fff; font-family: Georgia,serif; font-size: 16px; vertical-align: baseline;">Try rewording this. Also, you might want to move the part about recording initial stain diameter to an earlier step. It would make more sense because you do it before adding bleach. Allie Faivre

<span style="background-color: #ffffff; color: #ff0000; font-family: Georgia,serif; font-size: 16px; vertical-align: baseline;">This is a good start but there are several details that need hammered out before this can be a solid experiment. Ms. Miller

<span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 16px; vertical-align: baseline;">Bibliography:

1. <span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 15px; vertical-align: baseline;"> "Articles." Bleach Beware? Not Anymore! from Tide.com. N.p., n.d. Web. 24 Oct. 2013. [|__http://www.tide.com/en-US/article/bleach-beware-anymore.jspx__]

<span style="background-color: #ffffff; color: #333333; font-family: Arial; font-size: 15px; vertical-align: baseline;">2. "Bleach." The Gale Encyclopedia of Science. Ed. K. Lee Lerner and Brenda Wilmoth Lerner. 4th ed. Vol. 1. Detroit: Gale, 2008. 613-614. Gale Virtual Reference Library. Web. 8 Oct. 2013.

[|__http://go.galegroup.com/ps/retrieve.do?sgHitCountType=None&sort=RELEVANCE&inPS=true&prodId=GVRL&userGroupName=washington_chs&tabID=T003&searchId=R3&resultListType=RESULT_LIST&contentSegment=&searchType=AdvancedSearchForm&currentPosition=1&contentSet=GALE%7CCX2830100328&&docId=GALE|CX2830100328&docType=GALE__]

<span style="background-color: #ffffff; color: #333333; font-family: Arial; font-size: 15px; vertical-align: baseline;">3. "Bleach." World of Invention. Gale, 2006. Student Resources In Context. Web. 8 Oct. 2013.

[|__ttp://ic.galegroup.com/ic/suic/ReferenceDetailsPage/ReferenceDetailsWindow?failOverType=&query=&prodId=SUIC&windowstate=normal&contentModules=&mode=view&displayGroupName=Reference&limiter=&currPage=&disableHighlighting=false&displayGroups=&sortBy=&source=&search_within_results=&action=e&catId=&activityType=&scanId=&documentId=GALE%7CCV1647500102__]

<span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 15px; vertical-align: baseline;">4.“Bleaching.” Today's Science. Infobase Learning, Web. 8 Oct. 2013. <span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 16px; vertical-align: baseline;"><span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 15px; vertical-align: baseline;">< [|__http://tsof.infobaselearning.com/tsofencyarticle.aspx?ID=2810__] <span style="background-color: #ffffff; color: #363636; font-family: Arial; font-size: 15px; vertical-align: baseline;">>.