By Matt Reese and Dale Minyo
The definition of freezing point depression is: a colligative property observed in solutions that results from the introduction of solute molecules to a solvent. Make sense?
While this definition may not immediately seem even remotely interesting or relevant, freezing point depression happens to be the concept behind salting roads to improve winter driving conditions and a key component in the development of ice cream.
“I’ll teach chemistry until I’m blue in the face and the students just stare at me. But then I can kind of trick them if we make some soy ice cream. I calculate freezing point depression with them and then the macromolecule content — that’s when it clicks with them because they’re able to associate between the two and we can have a deeper conversation. Everyone eats, so that’s how I can connect the science with their real life,” said Jennifer Foudray, a biotechnology lab instructor for the Miami Valley Career Technical Center.… Continue readingRead More »