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Salt Oscillator *

Difficulty
Time Required Short (2-5 days)
*Note: This is an abbreviated Project Idea, without notes to start your background research, a specific list of materials, or a procedure for how to do the experiment. You can identify abbreviated Project Ideas by the asterisk at the end of the title. If you want a Project Idea with full instructions, please pick one without an asterisk.

Abstract

Fill a jar a little more than half full with fresh water. Make a solution of salt water, and add a drop or two of food coloring to it. Pour the salt water solution into a plastic cup with a small hole in the bottom, and then place the cup in the jar with fresh water. (The only connection between the fresh and salt water should be via the hole in the bottom of the cup.) With the right combination of hole size and salt concentration, you will see an oscillating current develop in the jar. Experiment to find which hole sizes and salt concentrations work best. (Johnson, 2005)

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Science Buddies Staff. "Salt Oscillator" Science Buddies. Science Buddies, 6 Oct. 2014. Web. 22 Nov. 2014 <http://www.sciencebuddies.org/science-fair-projects/project_ideas/Chem_p052.shtml>

APA Style

Science Buddies Staff. (2014, October 6). Salt Oscillator. Retrieved November 22, 2014 from http://www.sciencebuddies.org/science-fair-projects/project_ideas/Chem_p052.shtml

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Last edit date: 2014-10-06

Bibliography

Johnson, M.R., 2005. "Flow Dynamics of the Salt Oscillator," California State Science Fair Project Abstract [accessed February 27, 2006] http://www.usc.edu/CSSF/History/2005/Projects/J0112.pdf.

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