Exo Space Blog
Work, projects, and basically anything else I do in class
(Not just about space)
Looking Back: For this lab we had to make Oobleck. It was a runny substance that when applied pressure it would firm up. The question for this blog was "Is it a liquid or a solid?" To make Oobleck we mixed corn starch with a bit of water. There wasn't an exact measurement of these things, but you had to make sure to not add too much water to the corn starch. If you do it will be too runny and it won't firm up. My group got the right consistency and played with the Oobleck for most of the time. We did end up asking each other what we thought; was it a liquid or a solid? We ended up agreeing that it was a liquid that turned in to a solid when pressure was applied. I think the corn starch being really thick and the water being very light caused this to happen. If I were to do this again I would do more than just shape it into a ball. I would try freezing and heating it to see what would happen. I got a deeper understanding of what a solid and liquid truly is. Since I had to see what makes a solid and what makes a liquid to describe the Oobleck I became more aware of what they are. Overall this was a very cool project and very informative.
Looking Beyond: I think this happens because as the corn starch tries to absorb the water, the water is trying to dissolve the cornstarch. Since they are fighting it creates both a liquid and a solid. So when you had pressure, it is like you are trying to absorb the water, but once you let it go it goes back into a liquid. Looking Inward: I did get desired results once we made changes to our first attempt. I think it is pretty amazing that we can make something so complicated, with just two simple items. Also the fact that scientist can't even explain this, makes it even more amazing. Looking Outward: I worked with Morgan and Genivie and we worked pretty fine. It was a bit awkward at first since I didn't really know them and I just make every situation awkward. But once made the Oobleck the awkwardness went down a bit. Looking Forward: If I were to do this experiment again I would mess with the Oobleck a bit more. For example I would add food coloring, try heating and freezing it, ect. I would just do more things to try and change the form.
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Jennifer R.Grade: 10th Archives
November 2015
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