When life hands you a lemon, make electricity.
step 1:have cups for the juicestep 2:pour the juice in the cups, pour juice half waystep 3:drop in pennies that are dirtystep 4:leave pennies for a while like 20-30 minutes to let chemicals come togetherstep 5:take out the pennies and compare them to see which is cleanerstep 6:you have completed the procedure
Grape juice is not the best choice for cleaning pennies. Lemon juice cleans pennies best due to its acidity.
I just did a science fair project on this and salt preserves it the best.
Because of the Chemical Acids from the fruit in it.
Most sodas have a chemical that corrodes very reactive objects. A penny is now made from zinc which is highly reactive to soda... try this, put a tooth in coke can overnight andsee what happens
apple juice... I did that as a science fair project
Most likely Citrus such as lemon or orange.
lemon juice
The citric acid reacts with the oxidation on copper.
Lemon cleans pennies the best because of the acid in the juice.
Mostly as I know, lemon juice or vinegar can be used to clean copper pennies. You can let soak in for a while to clean them. Good luck in cleaning them!
Chemistry
Take a cup of lemon juice and three pennies and put all three pennies in the cup of lemon juice and leave it in there for 3 days and see what happens to the pennies.
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.
step 1:have cups for the juicestep 2:pour the juice in the cups, pour juice half waystep 3:drop in pennies that are dirtystep 4:leave pennies for a while like 20-30 minutes to let chemicals come togetherstep 5:take out the pennies and compare them to see which is cleanerstep 6:you have completed the procedure
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.
Grape juice is not the best choice for cleaning pennies. Lemon juice cleans pennies best due to its acidity.