Homewood-Flossmoor’s Tech Ninja Team is kicking off its season Sunday. The competitive robotics team is hosting an introductory event from 6 to 8 p.m. on Sunday, Sept. 10, at the Homewood Science Center, 18022 Dixie Highway in Homewood. It’s the start of the third year for the Tech Ninja Team, which is made up of middle and high school students from Homewood and Flossmoor. For the past two years, members have designed and built robots to compete in FIRST Tech Challenge (FTC). The team works out of the science center. At the Sept . . .