Bright, animated and full of energy and determination, Chloe Johnstone epitomized many of the girls and young women attending the 25th Tennessee Girls in STEM Conference at MTSU. “We made it. It worked,” Johnstone, 10, of Hendersonville, Tennessee, squealed with delight as her marble made it down the roller-coaster foam track, through a loop and … Continue reading 25th annual math-science event at MTSU abuzz with challenging STEM activities, motivation