Increased sugar-sweetened beverage (SB) consumption and declining physical activity (PA) are linked to the rising obesity rates in children. This study seeks to determine if the transition from elementary to middle school has an impact on the relationships between changes in SB consumption, PA, and body mass index percentile (BMI%). At baseline and two years later, 100 subjects (50 elementary and 50 moving to middle school) reported SB consumption, PA level, and had height and weight measured. Frequency of SB consumption and BMI% did not change over the two-year period within or between groups (p>0.05). PA dropped in the transition group (p