Experiment 1: Water on a Penny
During 4 trials, the average number of drops of water that could fit on a penny was 59.25. As the drops were added, it was an example of both cohesion and adhesion. It was cohesion because the water drops kept sticking to each other as they formed a bubble. It was adhesion because the water drops were sticking to the penny.
Experiment 2: Tests with Soap
During 4 trials of adding soap and water to the penny, the average amount of drops was 11.5. During this experiment, adhesion and cohesion both occurred. Cohesion occurred because the water was sticking to itself and adhesion occurred because the water stuck to the penny and the soap.
Experiment 3: Wax Paper
When water drops were carefully placed onto wax paper, the water drops combined into one big drop and did not dissolve into wax paper. When soap was added to the water drops, they went flat but didn't dissolve. This experiment showed cohesion because the water combined when it was on the wax paper.
Experiment 4: The Paperclip Trick