My students complete these science activities at the end of the year, but it would be a great cumulative acitivity for a water unit in science, or as a science inquiry for the scientific method at the beginning of the year.. Students get to discover properties of water cohesion by completing a water drop/coin activity and "racing" the water drop down a track to the finish line. This activity is a student favorite. It is one that they share with their families each year.
There are two activities that students get to explore. In the first one students estimate how many drops of water will fit on a penny, dime, nickel, and quarter. Then they test their hypothesis using and eyedropper and counting the actual number of drops each coin can hold.
In the second activity, students "race" their water drops down a track and time how fast they can move their drop using a toothpick. Then they create their own race tracks and complete the "race" again.
A list of materials is included in the packet, along with student directions for each of the activities.
I hope you and your students enjoy Water Drops and going to the "Water Races."
Please come back and visit again soon.