Chemical Reactions & Electricity

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This material is based upon work supported by the National Science Foundation under Grant #XXXXXX. Any opinions, findings, and conclusions or recommendations.

Presentation transcript:

Chemical Reactions & Electricity TEAK – Traveling Engineering Activity Kits Partial support for the TEAK Project was provided by the National Science Foundation's Course, Curriculum, and Laboratory Improvement (CCLI) program under Award No. 0737462. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

Taking apart batteries is not safe!!! Don’t do this at home! What’s In a Battery??? Canister Electrolyte Positive metal Collector Separator Negative metal Taking apart batteries is not safe!!! Don’t do this at home!

How a Fruit Battery Works Zinc Copper The electrons flow towards the copper when the fruit battery is connected in a circuit – this creates electrical energy!!! Hydrogen gas A transfer of electrons (chemical reaction) occurs between the zinc and the acid in the fruit. This reaction results in hydrogen gas from the acid and extra electrons from the oxidized zinc. (This will happen with or without the copper nail). The copper nail helps draw power from the fruit and channel electrons through an external circuit. Electrons Fruit acid

Bibliography http://energizer.com/learning-center/Pages/how- batteries-work.aspx