A promotional preview video for the Annenberg Learner series "Chemistry: Challenges & Solutions", narrated by Anna Lewicke. Produced by the Harvard-Smithonian Center for Astrophysics' Science Media Group, the full series is currently in production (Spring 2013). Completed programs are available at: www.learner.org or by calling 1-800-LEARNER. Copyright 2013. Used by permission.
Chemistry: challenges & solutions, narrated by anna lewicke | Anna Lewicke
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