This week Reactions is look at the science behind rock salt and how it melts ice. We’re breaking down the chemistry that keeps the roads safe when bad weather hits.

Special thanks to Pedro Alvarez, Ph.D., P.E. of Rice University for his help with this episode.
Check out his story at: http://www.alvarez.rice.edu/

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Words and Video: Kirk Zamieroski
Scientific Consultant: Pedro Alvarez, Ph.D.