How Many Drops of Water Can a Nickel Hold?
Conduct a simple test to determine how many drops of water can be placed on certain coins before spilling over. Young and budding scientists will enjoy this super easy experiment which explores the magical phenomenon of surface tension. Participants can predict how many drops will fit onto a nickel and compare the result to a quarter and a penny.
The molecules that make up water stick to one another. This cohesiveness gives water its high degree of surface tension. It is water's cohesiveness that allows it to form a rounded bead when a single drop is placed on a flat, nonporous surface. You will be surprised by your findings in this fun boredom buster experiment.
How to Do It