Today I experment with a penny, water dropper, paper towel. We put little drops of water on the penny. First I guessed how many drops I could put on the penny. I guested four but the most I got was 53. Why the water bubbled up and stayed on the penny was from cohesion.
Cohesion means the water sticks to itself.
Today we did an experment with a penny, water dropper, paper towl. We had to put the water on the penny and see when it would fall off the penny. It stayed on because of cohesion. And to suceed you had to go slower with your drops instead of fast. Dear Water partners, Our class is doing water module 4.