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| This is so cool! |
You started off with a fun exploration of an interesting system of milk, food coloring, and dish soap. I encourage you to try this at home to impress and amuse your family. You conducted your first controlled experiment today when you changed one component of the system and then observed the effect of that change. Now I want you to think about what caused the system to change.Take a look at this short video that gives one possible explanation of the phenomenon of the milk and food coloring.
Click Here to Watch the Milk Experiment Video
Now I want you to think about your experiment. Do your results support or contradict the explanation you just saw? Post a comment about how your results support or disclaim the milk experiment explanation.
Nick Fulchino, G Block:
ReplyDeleteMy group's results disclaim the video's findings. While that explanation worked for the first experiment, it was not the same for our second time. We decided, for our change, to place the dish soap directly onto the colors instead of in the center. When we did that some colors waited a very long time before reacting and there were even times when nothing was moving. Therefore, I don't believe that the dish soap. If we assume the video is fact then why didn't the soap directly on the colors break up the fact immediately as it implies in the video? We could use our experience to counter the argument of the video because when we poured the dish soap directly on the colors there was no immediate reaction, even though when he did it there was.
Nikki Derosier, D Block
ReplyDeleteFor the first experiment, our outcome did not follow the video. When we added the dish soap to the center of the dish, the colors expanded but did not mix and stayed generally in the same area. However, when we decided to put the red dye in the middle of the dish for our manipulation and added the dish soap on top, the red quickly expanded to the outer edge of the dish and mixed with the other colors, thus supporting the video.
Nick and Nikki, I like how you both are diving into the results and using your observations to support your arguments to disagree with the video.
ReplyDeleteOverall our experiment was great. It was fun to see how the one little drop of sop made such a huge impact on the food coloring. As soon as we put the soap it transformed into a whirlpool and the colors rotated around that one drop? It was almost as if the soap the catalyst for everything that happened
ReplyDeleteAbby Byrnes, D Block
ReplyDeleteMy groups experiment did not look like this one did. Our colors didn't mix the first time when they were in four separate corners, but when we changed the placement of one of the food colorings to the middle of the dish it did mix. However, our experiment still didn't move the same way (or as much) as in the video, combine all the colors, or make patterns.
this was a really interesting experiment. we did not combine the colors so we did not get the same effect as the video. we placed the colors in four separate corners. as we put the dish soap in the middle the colors expanded but did not combine as one big mixture.
ReplyDeleteThomas Wheatley, G Block
ReplyDeleteWhen my group did this video we did it differently. We put the colors in the dish so that they weren't touching and the soap in the center. When we put the soap in, the colors retracted and thinned out along the side of the dish. Eventually the colors started mixing but i think it was because there was not enough room for them not to be touching. After a few minutes they started mixing more and making a gross color, but our reaction didn't look like the one in the video. When we did it the opposite way, we put the soap in first and then the colors. The colors started mixing a lot faster and making a similar reaction to the one in the video but not enough to make them twins.
Thomas Papalcure, D Block
ReplyDeleteWhen I did this the colors with the milk mixed around when dish soap was added, but when we used vinegar since the food dye is more dense than the vinegar, it sunk to the bottom, and did not mix. It was a very interesting experiment.
my groups didn't look like that. they first time the colors barley mixed, but they did mix a lot more the second time when we used half and half. maybe if we put the colors more in the middle it would have worked better, like in the video.
ReplyDeleteMy group had a completely different result then seen in the video posted. Our food coloring barely mixed when we tried doing the experiment the first time. The colors stayed in the spots we had initially dropped them in and when the dish soap was added they spread out to the outside, but that was as far as the experiment went. We tried the experiment for a second time and instead of using whole milk we used half and half, hoping for a better result. This time we made sure to put the drops into the milk at 90 degree angles and were much more consistant than the first experiment. We added in the dish soap and still the colors did not mix any where near how they mixed in the video. After five minutes there were small bubbles in the green dye, but nothing had changed much. It was interesting to see all the different results from everyone in the class.
ReplyDeleteJosh Liebhaber, D Block
ReplyDeleteWhen my group added the soap to the milk and food coloring all they did was quickly spread, unlike the video. However the second time we added the soap to the outside of the dish they went towards each other. Overall, it was a very interesting experiment and made me think a lot about reactions science.
JJ Lim, G Block
ReplyDeleteWhen my group did this experiment, our milk seemed much more viscous than the milk in the video. It took a long time for the color to flow. Perhaps different types of dish soap have varied effects? We changed the experiment by using half and half instead of milk, which flowed a little faster, but not by much.