by: Donna Giachetti
In a February 2014 blog post we said goodbye to the last of our goldenrod paper supply, a beloved staple in many science teachers’ classrooms.
by Tami O’Connor
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.