Goldenrod Paper Message – Sick Science! #059
The term goldenrod is typically used to describe a color of paper – golden yellow. However, our goldenrod paper contains a special dye that turns bright red when exposed to solutions that are basic, like ammonia water or washing soda. We’ll show you how to use this special color-changing paper to develop a hidden message and make dripping, bleeding paper… complete with your own handprint marked in “blood.” It’s a great acid/base lesson for the Halloween season.
Learn more at http://www.stevespanglerscience.com/experiment/goldenrod-paper-message
Want more experiments like this? Check out http://www.stevespanglerscience.com/product/naked-eggs-and-flying-potatoes
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The hand of sauruman!!!
wax keep the ammonia away from the paper, also the ammonia evaporate!
Were can I get the water
AHA! i've caught you red handed!
Thats so cool
I like so much your videos, but I don't understand english. 🙁
WILSON!!!!!
if i cant find ammonia can i use my urine… its steril i swear lol
the ammonia isnt going to hurt your skin?
WILSOOOOON!!!!!!!!
My guess would be a pH shift. Acid dyes in the paper react with the high aylkyline in the ammonia to shift the dye to red.
I already new it said boo
or you can use water colores.
Because its just a giant sheet of litmus paper and the ammonia is a base solution so it turns the paper red /pink