Wisdom Breece, left, and Chelsea Williams, eighth graders at Dempsey Middle School, conduct a bubble experiment in Lisa Giddings’ science class Wednesday morning. Giddings said the bubbles and lesson deal with altering variables in an experiment and measuring the result. Students would blow up the bubbles of one solution and measure them against bubbles from a solution with less soap and a solution with less sugar to determine which solution produces the biggest bubbles.