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JEAN LAB CONCLUSION  

In the Jean Lab, we questioned the fact that bleach fades out color from fabric. Our hypothesis was that if bleach fades out color from fabric, then, when the jeans are dipped in bleach, the jeans will change into a lighter color than their original color. We have found that bleach does fade the color from jeans, but not always into a perfect white. When the bleaching process was done, the jeans had not been damaged in any way and that the 100% solution, which one’s average was 2.3 points higher than the 50% solution, of bleach made one square of jeans into a nearly pure white, and another into a yellow color. Bleach is already used to whiten spots on fabric and the fabric itself, so the scientific data supported our claim, as did previous knowledge on bleach.

However, while our hypothesis was supported by our data, which concluded that bleach does remove color from fabric, there could have been some errors. These errors could have happened in measuring how much bleach and water we used, and one inconsistency that we know of was the original color of the jeans. Some were lighter than other squares and others were darker. This could have affected our results because if the color was originally darker, then it would take more bleach to completely whiten the fabric. In future experiments, I suggest using three different pairs of jeans and using a square from each jeans into each solution and then repeating the experiment.

The lab was done to demonstrate whether bleach faded color or not, and it was also used to learn the six steps of the scientific method. From this lab, I learned that in order to get the best results, everything should be equal except for the dependent variable, which helps me understand the concept of the scientific method in more detail. Based on my experience from this lab, I can can now conduct other experiments using the six steps of the scientific method, and I have prior knowledge on the effects of bleach on fabric.

CONCENTRATION (% bleach)	AVERAGE COLOR REMOVAL (scale 1-10)	AVERAGE FABRIC DAMAGE (scale 1-10)
100	9	2
50	7.7	1.3
25	6.3	0
12.5	2	0
0	0	0