Join the #NSTA13 Charlotte Twitter contest! If you’ll be attending the National Science Teachers Association’s Conference on Science Education in Charlotte, NC, November 7–9, 2013, tweet for a chance to win NSTA Gear or a $50 Gift Certificate to the onsite Science Store at the Charlotte Convention Center. Tweet the answer to the question “What session/exhibit/talk did you like best at NSTA’s conference in Charlotte?” and put #NSTA13 into your tweet. Those who tweet between 9:00 a.m. ET, Wednesday, November 6, and 2:00 p.m. ET, Friday, November 8, 2013 will be eligible to win. Winners will be selected randomly and must be in the onsite Science Store in the Charlotte Convention Center at 3:30 p.m. ET, Friday, November 8, 2013 to win. Here are the terms and conditions.