Free Shipping on Orders Over $199
imaget3joa.png

Order early for pre-holiday delivery. Flinn will be closed December 24th, 2025,
through January 4th, 2026, reopening Monday, January 5th, 2026.
Orders received after 10:30 AM Central Time on Tuesday, December 23rd, 2025,
will ship after we return.  

Your Safer Source for Science
All-In-One Science Solution
Your Safer Source for Science
;
Address P.O. Box 219 Batavia, IL 60510
Phone 800-452-1261
Fax
Email [email protected]

How Cool Is That?

firewatch

Publication 10956

Price: FREE

The “cooling effect of evaporation” is nature’s most important way of cooling our bodies and also the Earth. How cool is that? The purpose of this technology activity is to measure temperature changes versus time when different liquids evaporate. Liquids will be compared pair-wise (e.g., polar versus nonpolar) to analyze the strength of attractive forces.