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Grade Level: 9-12
Science Education Standards:
Short Description: PP. 7-12. Students become aware of their preconceptions by considering how how they could heat ice water. They then test their preconceived ideas by heating an ice water slurry and measuring its temperature. Until all the ice melts, students find that the temperature remains constant, nearly 0 degrees Celsius. They graph the data and try to make sense of the temperature plateau. Finally, the students explain what changes of state mean at the molecular level. Note: This is a 105 page PDF.