Most likely Citrus such as lemon or orange.
I am doing this as a science fair project and I really need to find out how milk cleans pennies. Thanks.
apple juice... I did that as a science fair project
Yes windex can clean a penny, I did a science project on it in 8th grade, and windex cleans pennies better than salt water and vinegar. It cleans a penny because it has ammonia in it which can cause some sort of chemical reaction with the copper which in turn keeps the penny clean
I think coca cola cleans pennies the best
Probably some student's science fair blog. Search it on Google. Frankly, I don't think any serious research has been done on that topic.
it cleans them
Vinegar.
yes lemon juice cleans pennies better than bleach
There are a number of different projects a student can do for the science fair. Some classics include building a working volcano or growing a potato hydroponically. For other ideas, a simple internet search should yield useful results.
Independent Variable- The Taco Sauce Dependent Variable- How clean the penny gets....
vinegar
lemon juice cleans a penny better