COMPARING THE CORNSTARCH MONSTER WITH THE GOOEY WORMS

COMPARING THE CORNSTARCH MONSTER WITH THE GOOEY WORMS
BY: Clare Grogan

CORNSTARCH+WATER:

For this scary monster, we first tested how much water we needed to add to the corn starch. For example, if you had two cups of cornstarch you would need only one cup of water. I'm not sure how much of each we put, but there was definitely more cornstarch.Then, after a lot of mistakes, we added the right amount of water to a tray of corn starch.

LIQUID SODIUM ALGINATE+CALCIUM CHLORIDE:

First, we added some calcium chloride to colored water. Then, after we mixed these two substances together, we added worm goo, or sodium alginate. Then we mixed it just a bit and pulled it out and it became sort of a gummy worm solid kind of thing. We took it with a stick out and played around with it.

DIFFERENCES: 

The first mixture, cornstarch and water, was much more interesting to touch in my opinion because it was solid when you touch it, but when you picked it up it dripped down like a liquid, although slower. The other gooey worm mixture was less cool to me because all you could do was squish it and pull, but it didn't feel different like cornstarch.

SIMILARITIES:

The obvious similarities were that they were both mixtures, but some more interesting similarities is that they both seemed to be liquid and solid. The cornstarch was solid when you touched it but liquid when you picked it up. The gooey worms were solid on the outside, but once you squished them, you could feel liquid all over your hands. The second most 'scientific' discovery I found was that they both included water and some other thing, but even better, one of the other mixtures was a solid. Interesting, right?

Hope you enjoyed reading this and please comment if you found interesting!!! =)