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

Careful observation is the foundation of chemistry as an experimental science. Observations—which may be qualitative or quantitative—should be both descriptive and reproducible. Would you believe it’s possible to come up with more than 100 different observations of a burning candle? Let’s find out!


  • Observations
  • Scientific Method
  • Physical Change