Seventh Grade Science in Action
Source/Author: Harry Powers, Seventh Grade Science Teacher
August 25, 2016
Students practiced using the Scientific Method this week to test how soap changed the cohesion of water molecules. Cohesion and surface tension give water some amazing properties, and students used them to see how many drops of water fit on a penny. Water’s cohesion and surface tension are special because of hydrogen bonds. Hydrogen bonds are formed by the hydrogen atoms of one molecule being attracted to the oxygen atoms of another molecule.
Students also worked on team dynamics and verbal and non-verbal communication by stacking cups using only a rubber band, which they manipulated with attached strings. The hardest part can be not giving up when things get frustrating! Cooperative tasks like these teach the students conflict resolution, to listen and communicate better with each other and trust members of the group.
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