Your Safer Source for Science

Since 1977

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

Build a simple model to demonstrate the fundamental principle of mass spectrometry—the separation of charged atoms based on their masses. Use this demonstration to promote inquiry, inspire wonder, and engage students in the process of scientific discovery. In this activity, science is not a noun, it is a verb—an active verb!


  • Scientific Method
  • Inquiry
  • Isotopes