Katya Hafich of the University of Colorado, Boulder, demonstrates how temperature changes affect the movement of glacial ice to third-graders at Riverview Elementary School. The students in Charlie Love’s science class are, from left, Maria Tavares-Duarte, Cedar McGourty, Cole Congdon, standing, and Riley Dastrup. Hafich was sharing research from CU Boulder scientists with Love’s science classes, which are studying water cycles and erosion.