Grace Cardenas asks Lance Cpl. Justin D. Miller, background, a question during a cartography class Dec. 13 as part of the recent Science, Technology, Engineering and Mathematics week at Stearley Heights Elementary School on Kadena Air Base. The children learned how maps are configured, weather effects the environment, sound waves are made by instruments, how to build a radio antenna, and ways to design a structure made of toothpicks and gumballs that could support heavy objects. Cardenas is a third-grader at the school. Miller is a geographic intelligence specialist with G-2, intelligence, Headquarters Battalion, 3rd Marine Division, III Marine Expeditionary Force.