Jean Lab
In our jean lab our hypothesis was that If bleach takes away color, then when I add bleach, the jeans will have a lighter color. It turned out that our hypothesis was correct. We had two different color jeans(darker blue and lighter blue). The lighter blue turned a very light blue almost white color while the darker blue had turns a lot lighter but was still a blue color. 100% concentration of bleach usually damages the clothing and makes the fabric white but by adding water to our mixture it just lightened the jean square. We added the 50% concentration to the darker color jean squares and that’s why the darker color turns lighter and not completely white.
During our experiment we made some dramatic mistakes that delayed our experiment. We started our experiment well when we poured the bleach and water into the containers we poured fairly fast and accurate. After when we poured the mixtures into the petri dishes with the jean squares after about 20 seconds one of our team members accidentally spilled the petri dishes and a lot of the mixtures spilled over on the table. We hurried to get paper napkins and water to clean up the mess. Over the time it took to clean everything we spilled even more which delayed our experiment and made our data inaccurate.
For the next lab we do we will be a lot more careful so we don’t spill especially when working with liquids. This lab was done to demonstrate how bleach can affect jeans and how bleach concentration affects how much lighter the fabric turns. Based on my experience from the lab I have a good idea on how bleach works and how much you need for a specific situation.
Concentration (% bleach)
|
Average Color Removal (Scale 1-10)
|
Average Fabric Damage (Scale 1-10)
|
100
|
10
|
5
|
50
|
8
|
2
|
25
|
5
|
1
|
12.5
|
3
|
1
|
0
|
0
|
0
|
