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Order early for pre-holiday delivery. Flinn (or Educational Innovations) 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]
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Demonstrate your mastery of density by determining the maximum amount of sand that can be placed in a plastic vial and still allow the vial to float in water. Calculate the amount carefully—you only get one chance!

Concepts

  • Density
  • Observations
  • Scientific Method