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

What's included?

• 100 or 500 sheets of Goldenrod Paper

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!