Donate
8-HUM01

Cleaning Coins

Human Health and Behavior
Irving Arizmendi

Grade:
8
Teacher:
Kathleen Barrett

My project focused on how to clean coins so that they would grow less bacteria. I chose this project because I was curious about how to clean coins. As a result, I found that coins are best cleaned using tooth paste, vinegar, salt, and water.


Project presentation

View Project Presentation file

3 thoughts on “Cleaning Coins

  1. Great job! I really liked how you recorded your observations to show the differences in the cleaning methods.

  2. This is an interesting idea! Cleaning products vary in terms of their ingredients, how well they clean, etc. So it makes sense to test which types of ingredients clean pennies best. Good description of the variables. The methodology could be improved if multiple pennies (multiple trials) were made with each cleaning agent, and if the cleaning process (how long, etc) was described.

  3. This is an interesting idea! Cleaning products vary in terms of their ingredients, how well they clean, etc. So it makes sense to test which types of ingredients clean pennies best. Good description of the variables. The methodology could be improved if multiple pennies (multiple trials) were made with each cleaning agent, and if the cleaning process (how long, etc) was described.

Comments are closed.