Healthy Hydration Pilot in Elementary Schools

Inclusion: * Lunchroom observations: All students (K-5th) who eat lunch in the cafeteria on assessment days are eligible for lunchroom observations (observing what beverages are selected and presence of water bottles) * BMI and dental caries assessments: 1) student is in the 3rd grade; 2) English or Spanish speaking. * Student surveys: Students in 4th-5th grade are eligible to complete surveys assessing beverage intake and perceptions of hydration practices in their district. * Staff surveys: All staff in the target schools will be eligible to complete the School Environment Survey. Exclusion: * Lunchroom observations: None. * BMI and dental caries assessments: Students are ineligible if they: 1) are non-English or non-Spanish speaking; 2) have a medical condition that precludes drinking water or that can put them at risk for failure to thrive or poor weight gain, 2) are unable to complete assessments due to developmental delays, 3) plan to move from the school district during the study period. * Student surveys: Students in 4th-5th grade who are unable to complete surveys due to developmental delays will be ineligible. * Staff surveys: None.