Hello again, you guys and gals have been a wealth of knowledge during my membership but I am looking for some help.
I am wanting to do a demonstration in my classroom that I once saw on the show Mr. Wizard. The experiment consisted of starting with 2 clear liquids in seperate beakers. A young student would then, mix the beakers, back and forth, repeatedly. Then all of a sudden the clear liquid would turn dark blue instantly. It took about 10 seconds of mixing for the change to occur. Any ideas as to what chemicals they were mixing?
Thanks in advance.