Penny Surface Tension Experiment

Have you ever wondered how many drops of water can fit on a tiny penny? This fun science activity helps you discover the amazing strength of water. As you begin, you’ll learn that water can hold together in ways that might surprise you.

You will observe how water drops pile up on a penny without spilling over right away. By watching closely, you’ll see the water form a rounded dome shape. This happens because water molecules stick together, creating surface tension that holds the drops in place.

As you work through the activity, your science knowledge and vocabulary grow naturally. You’ll learn new words related to water and surface tension while improving your reading and understanding skills. Counting the drops also helps you practice basic math skills in a meaningful way.