Flowery Branch Elementary School fourth- and fifth graders competed in 18 events and finished in second place in the first-ever Science Olympiad hosted by Martin Technology Academy of Math and Science. Competition categories ranged from knowledge of weather, rocks, simple machines and constellations to hands-on activities, including bridge building, rocketry, chemistry and engineering. The students will compete May 17 in the State Science Olympiad at Kennesaw State University.