Hi Aleksander! Do you see your penny? It looks shiny after we let it sit in lemon juice! Let me tell you why!
First, when we put the penny in lemon juice, the juice is a little bit like a magic bath. It helps to clean the penny!
Then, the lemon juice has something called 'acid.' This acid is very special because it helps to take away the dirt and the dull stuff that makes the penny look not so nice.
So, after a little while, when we take the penny out of the lemon juice, it shines again! Just like a star! Isn’t that neat?
It's like giving the penny a nice, shiny hug from the lemon juice!