This is a ready-to-use experiment to explore properties of water. Students follow the directions to predict and record observations of how many droplets of water will fit onto a coin before spilling over. It's guaranteed to motivate and engage your students in hands-on Science.
All you need is this handout, a handful of coins, and enough eye droppers and cups of water for students to share in partners.
The last page includes an explanation in kid-friendly terms of how surface tension keeps the water molecules "stuck" to the coin.