BATCHELDER SCHOOL STUDENTS wrapped up the old year and their science unit by studying the properties of liquids and solids. The students explored oobleck, made popular by the Dr. Seuss book “Bartholomew and the Oobleck.” Is oobleck a solid or a liquid—or both? From left: Lucy Wells, Ali Pineo, Genevieve Arden and Edward Baia. (Nancy Boudreau Photo)