Your Safer Source for Science

Since 1977

Address P.O. Box 219 Batavia, IL 60510
Phone 800-452-1261
Fax 866-452-1436

The discrepant event of placing a red sponge in a red solution and having it turn blue is sure to capture your students’ attention. This will surely stimulate a lively discussion leading to a generation of possible hypotheses.


  • Indicators
  • Acids & Bases
  • pH