Q: How did they make the snow in The Wizard of Oz? —Rita M., Cincinnati

A: Fans of the classic film, which celebrates its 75th anniversary this year, may be shocked to know that the magic snowflakes Glinda uses to revive Dorothy and friends after they fall prey to the Wicked Witch’s poppies were made of asbestos fibers, a popular fake snow material at the time.

Wizard of Oz: Trivia about the Cast, Characters, Costumes