EXPERIMENTING WITH GOLDENROD PAPER ? 1992 William J. Beaty 1. Squirt Windex(tm) or other ammonia-based cleaner on goldenrod colored paper. Anything interesting happen? 2. Tear off two strips of goldenrod paper, rub a little baking soda into one strip but not into the other. Wet both pieces of paper. Wait and watch. Anything interesting happen? 3. Wet a strip of goldenrod with an alkaline solution (baking-soda in water), then dip it into vinegar. 4. Spray some clear Krylon(tm) on part of some goldenrod paper (maybe mask the goldenrod first with some cut paper shapes) Let it dry, then spray the goldenrod with dilute alkaline solution (baking soda and water) 5. Wipe some vinegar on part of a sheet of goldenrod paper. Let it dry. Spray the paper with baking soda solution. 6. Wet your hands with baking soda solution, then handle the goldenrod paper. Notice anything? 7. Wet some goldenrod paper and place it on an unstainable (formica?) surface. Secretly rub baking soda onto your hands, then dust it off enough that no one notices it. Touch the wet goldenrod with your dusty hand. Wait for awhile, then look for color changes. Bystanders cannot perform the color change (they don't have baking soda on their skin!) 8. Wet some goldenrod paper in salt water. Place it on a piece of aluminum foil. Get a 6V battery, connect the positive end to the foil with an alligator lead, connect a bare wire to the negative end, then touch the wet goldenrod paper with the bare wire. 9. Wet some goldenrod paper in salt water. Place it on a piece of aluminum foil. Build a Morse-code setup with a battery, wire, and a Morse code key. Connect the positive wire to the foil, drag the negative wire along the goldenrod paper, and tap dashes and dots on the key. They will be recorded. 10. Cut out shapes, or maybe letters, from aluminum foil, leaving a tab of foil that extends out from each shape. Position the shapes on a piece of grey cardboard, make holes in the cardboard next to each tab, extend the tabs out the back through the holes, then glue the shapes to the cardboard,. Wet some goldenrod with salt water and smooth it down over the foil shapes. Connect a positive battery lead to one shape, a negative lead to another. Wait a while. _____________________________________________________________________________________________________ EXPERIMENTS REQUIRING AMMONIA (not for young kids!) : 11. Place a spot of ammonia on a plastic surface, then hold the edge of the paper very close to the ammonia. 12. Wet some goldenrod and stick it to an unstainable surface. Wet a small piece of paper towel with ammonia. Hold the ammonia-soaked towel near the goldenrod, then blow slowly across the towel so the air flows over the wet goldenrod. 13. Wet some goldenrod with water, then expose to ammonia gas to turn it red. Then watch and wait. Anything happen? 14. Obtain some goldenrod paper from another manufacturer, a type that doesn't change color with alkaline. Cut strips from this paper and from "Galaxy gold" paper. Compare their colors. Dip both in ammonia. Work this into a magic show? 15. Make ammonia safer for little kids: Cut a slit in a 2-liter cola bottle. Pour a little ammonia in the bottle. Cap the bottle. Cut a strip of goldenrod paper and push the strip into the slit. What happens? Try first writing on the strip with vinegar, Krylon, etc. 16. Wet the goldenrod paper and place it on an unstainable (formica?) surface. Place a little ammonia in a closed jar with some ice and shake up the jar. In a draft-free space, and without breathing too much, carefully uncap the ice jar and slowly pour the cold ammonia vapor over the goldenrod paper. Or dip wet strips of goldenrod into the invisible cold gas in the jar. 17. Set up a smoke-ring launching coffee can device. Wet some goldenrod paper and stick it to a vertical unstainable surface (chalkboard?) Place a little ammonia in the coffee can. Shoot invisible ammonia-rings at the goldenrod. Goldenrod is standard stationery, available as "Galaxy Gold" from Kinko's Copy Centers. Paper from other suppliers sometimes works, sometimes does not.