Water Boils in a Syringe

Warm—not hot—water begins bubbling/boiling. Ask students to predict what will happen. Seal tip, pull plunger to lower pressure. Key idea: Lower pressure lowers the boiling temperature. Ask: How can water boil without getting hotter? Safety and cleanup: Needle-free syringe; teacher demo. https://teachersinstitute.yale.edu/curriculum/units/files/16.04.08.pdf