These real Japanese 1 Yen coins are made from aluminum and can be made to float on the surface of a cup of water. Use a paper clip to gently lower the coin into the water and it will float on the surface! Adding a drop of liquid dish-washing soap destroys the surface tension and causes the coin to sink. Includes 50 coins and suggested activities. (These coins are nearly impossible to find in the U.S.) 50 coins per package.
Read more on our Blog - Science Experiments With Japanese Yen Coins
Write a review
Mar 5, 2014 | By Marco Gonzalez of West Covina, CA United States
Hard to Find
Aug 21, 2013 | By Kris of Memphis, TN United States
Simply the very best
Sep 7, 2012 | By John Pettibone of Gloucester, MA United States
A must have for teaching middle school science!
Jun 1, 2012 | By Michele Thomas of Seaford, DE United States
May 22, 2012 | By John B. Austin of Charlotte, NC United States