Goldenrod Color-Changing Paper Dip this paper in acids and bases and watch the brilliant color effect. email to friend
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Description
Experiments
Video
Reviews

At first glance our Goldenrod Paper looks like an ordinary piece of yellow paper. In fact, someone could go their entire life thinking that this was just yellow paper. But the secret is hidden in the dye used in the making of the paper. Rub a cotton ball soaked with ammonia water on the paper and it turns bright red! Ammonia water is a cleaning agent and is classified in chemistry as a base. If the opposite of a base is an acid, what would happen if you rubbed a cotton ball soaked with vinegar or lemon juice on the red streaks? The paper changes back to yellow! Recommended for children ages 6 and up.

Our 100 pack of Goldenrod Paper now includes a spray bottle for your "magic" ammonia-water solution!

What's included?

Your choice of 100 sheets with an included spray bottle or 500 sheets of Goldenrod Paper (without a spray bottle)

How does it work?

True goldenrod paper is coated with a dye that acts as an acid-base indicator. In fact it's the world's largest acid/base indicator strip and can be used for lots of science experiments!

What does it teach?

Learn about the difference between acid and alkaline substances by testing them on the paper.

Experiment:

Paint pictures on your goldenrod paper with vinegar first, and then paint with a baking soda solution. The pictures appear in different colors when the chemical reaction takes place! Be creative with your chemistry!

Goldenrod Paper Kit

jim lorz - February 4, 2010

This user gave 2/5 stars

I thought this would be good to have my kids make Valentine's Day cards for their mothers. I read all about it in your ad. It didn't say anywhere that the paper would change back to yellow when the ammonia evaporated. When the package arrived I checked it out well before I opened it. The directions do say that the red change is only temporary, but that information is hidden behind the other sticker on the package. I re-visited the web site and re-played the video clip. There it wqs. A whole second or 2 saying that the red would turn back to yellow when the ammonia dried. Oh, well. Live and learn.