Coke vs Diet Coke

Overview

What it does:
Cans of coke and diet coke are submerged in a tank of water. The diet coke floats while the coke sinks.
Concepts demonstrated:
The effect of sugar content on density.

Demonstration details

  • Equipment: Cans of coke and diet coke and a tank of water.
  • Setup time: Short
  • Difficulty: Easy
  • Visibility: High. This demonstration is appropriate for large lecture halls.
  • Classroom assembly:
  1.  Submerge the cans of coke and diet coke in the tank of water. The diet coke will float while the coke will sink.

Additional resources

References:

  • PIRA 2B40.?

Disclaimer: Don't attempt this at home.

Credits: Prepared by Jeff Rudd, 1999
Revised by Laura Schmidt, 2011