Skip to main content

Can ketchup clean a penny?

764,297 Views

1,644 Questions Answered

Best of Web

Let’s Begin…

Have you every noticed that some pennies are shiny, but some are dirty? Let's learn why some pennies get dirty AND how we can clean a penny in this video!

About TED-Ed Best of Web

TED-Ed Best of Web are exceptional, user-created lessons that are carefully selected by volunteer teachers and TED-Ed staff.

Meet The Creators

More from How Things Work