Water, water everywhere

In Biology class we are currently in our unit on the chemistry of life. This week our focus was on water chemistry, its properties, solutions, and The pH scale. We explored the properties of adhesion, cohesion, density and capillary action by carrying out several demonstrations based on the Project WET curriculum. It was amazing to hear the students' responses to some of the activities. One young man who was playing with a large drop of water on wax paper exclaimed, "why have I never done this before!" Many were fascinated with what happened when I slipped a sheet of print under the wax paper and it was magnified. Amazing what the property of cohesion can do. Hopefully seeing water in action will help them to remember the key terms and relate them to the role water plays in life on our planet.