In Cranberry Thanksgiving, Mr. Horace, the city man, is dressed nicely in starched clothing. So, one of the lessons talks about starch and how it can be used in laundry, but also how you can test for starch with iodine. The Fold n Learn has a little data sheet to use for the experiment, but in the end I couldn’t use it. This science teacher needs big action when it comes to an experiment! So, as every good scientist does, I broke out the Styrofoam egg carton. I filled it with bunches of kitchen items so we could test for the presence of starch.
I bet you’re curious as to what we have here:
- Old Bay- just to get our Maryland on
- egg shell
- cooked spaghetti- I raided the trash because I’m that kind of homeschooling mom…
- green bean
- liquid sizing from our laundry area- works like starch without the stiffness (according to the can- honestly I would not know what to do with it and Dan will concur)
For the experiment, you will need medicinal iodine. You can find it in your pharmacy. Typically, iodine is found in solution. It’s a rusty color. We also have a disposable pipette.
E11 did a Daily Quest on iodine yesterday using Web Elements. Iodine is a halogen found on the next to last column of the Periodic Table. Check out the contact explosive video. Dan actually made something in his lab that did the same thing. Iodine is pretty reactive and you can check out more chemistry facts yourself. I’m just sure I’ve peeked your interest!by