by Tami O’Connor
Gone But Not Forgotten
Many years ago at Educational Innovations we had heard rumors that our wonderful goldenrod paper that served as an easy to find indicator paper was being discontinued for environmental reasons. If you haven’t seen it before, it is was a golden-yellow paper that turned a deep red when it came in contact with a base like washing soda or Windex®. The process was reversed if an acid such as vinegar was sprayed on the paper.
Posted by Tami O'Connor