By Grogore - 26.02.2020
Salt and vinegar coin cleaning
Let the pennies sit for seconds. The vinegar and salt duo will act fast, so there's no need to leave them in for too long. As the pennies soak, you should be. Vinegar (or Lemon Juice) and Salt. Directly Above Shot Of Lemon Squeezer On Table. Merethe Svarstad Eeg/Getty Images.
We'd venture on that for a bit discussing chemical reactions. Tarnish is a chemical reaction between copper and oxygen.
We'd talk about if we could possibly clean this penny. Hence the salt and vinegar solution. You'll need: Salt, vinegar, cups, and a penny.
Students salt and vinegar coin cleaning follow the salt and vinegar coin cleaning you've given to them. To close the experiment we'll discuss things such as the statue of liberty and how she's so tarnished. While also talking about what happened to the salt and vinegar solution in the cup.How to Clean Coins with Vinegar
This is fun because of the designs and mini structures left behind from the solution after evaporation. We'll work with variables and how they can be added to or changed. Safety goggles would be advised to complete this project, just because you'll be working with acids.
Also, who knows where most pennies have salt and vinegar coin cleaning. Don't want kids rubbing their eyes after this.
Assessment By holding classroom discussions, visiting each group individually at their tables throughout the project, and having the students complete an experiment worksheet.
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