Electrolysis Spirals

Electrolysis in action with contestant Julie Yu during a live Webcast of the Exploratorium's Iron Science Teacher.

Watch all of Julie's activities (type "bolts" in the search box), along with many other episodes of Iron Science Teacher at www.explo.tv

The Iron Science Teacher competition showcases middle school and high school science teachers or the Exploratorium's own teaching staff as they devise demonstrations involving a particular ingredient—an everyday item such as a plastic bag, a milk carton, or in this case nuts and bolts. In a fast-paced atmosphere where showmanship and creativity reign, science teachers have ten minutes to concoct a science activity that can be used in the classroom.

An activity write up by Julie's fellow Teacher Institute staff member Eric Muller can be downloaded at http://www.exo.net/~emuller/activities/Electrolysis%20with%20indicator.pdf.

If you stop by, be sure to visit the exhibit Liquid Litmus based on the same phenomenon http://www.exploratorium.edu/xref/exhibits/liquid_litmus.html

Looking for more activities on electricity? Search our comprehensive online activity library at http://www.exploratorium.edu/educate/dl.html

Category:

Science & Technology

Tags:

• Exploratorium
• San
• Francisco
• science
• physics
• chemistry
• classroom
• teacher
• electricity
• demonstration

[sworder24]

This is really cool. What were the screws made of?

[Exploratorium]

They're stainless steel because they're nonreactive. Others metals will work, but you'll get corrosion.

[adric137]

good video

[HybridWaterMan2]

Nice demo- like the spiral result of the electrolysis

[nickharvey7]

This is very interesting!!