Sex
In a 2005 study conducted by Harris Polling, "From Teasing to Torment," teachers reported that middle school students were 30 percent more likely to be teased about their sexual orientation than high school students. Most children are aware of their sexuality between the ages of 8 and 11. In the last year, the Gay, Lesbian and Straight Education Network has seen a "huge surge of interest" in addressing anti-LGBT bullying in middle schools.
Read more (ABC News)