Today in science, the 2nd graders learned about surface tension by seeing how many drops of water could fit on a penny. After they counted how many drops of water, they tested the surface tension of “blood” (rubbing alcohol)!
Today in science, the 2nd graders learned about surface tension by seeing how many drops of water could fit on a penny. After they counted how many drops of water, they tested the surface tension of “blood” (rubbing alcohol)!