Скачать или смотреть Ice Ice Baby: Freezing Demonstration

This is the freezing demonstration associated with a unit on ice nucleation and the water cycle for advanced secondary school students (ages 15-18). This unit was designed to teach about precipitation processes and their impact on our world while exploring ice nucleation through the lens of a microbial ice nucleator. The demonstration shows the ice nucleation ability of and ice+ strain of Pseudomonas syringae. The unit includes guided and open inquiry sections where students test known and unknown samples for ice nucleation activity. This is part of a collaborative project sponsored by the National Science Foundation (NSF) under grant number DEB-1241068 (Dimensions: Collaborative Research: Research on Airborne Ice-Nucleating Species (RAINS)).