Children from the Joint Base Langley-Eustis Youth Program, prepare projects for the 4-H National Youth Science Day at Fort Eustis, Va., Oct. 7, 2015. The project is geared toward middle and high school-aged students as a way to provide real-world investigations on reaction time and safety making connections regarding the dangers of distracted driving. (U.S. Air Force photo by Senior Airman Kimberly Nagle/Released)

A toy car is guided down a track by a Joint Base Langley-Eustis Youth Program participant as part of 4-H National Youth Science Day at Fort Eustis, Va., Oct. 7, 2015. According to the 4-H website, NYSD is the world’s largest youth-led science experiment. (U.S. Air Force photo by Senior Airman Kimberly Nagle/Released)

Children from the Joint Base Langley-Eustis Youth Program participate in the 4-H National Youth Science Day at Fort Eustis, Va., Oct. 7, 2015. During the science day, students were able to explore the science of motion. (U.S. Air Force photo by Senior Airman Kimberly Nagle/Released)

Children from the Joint Base Langley-Eustis Youth Program, participate in the 4-H National Youth Science Day at Fort Eustis, Va., Oct. 7, 2015. Through the experiment, Motion Commotion, the students gained knowledge on physics, speed and safety. (U.S. Air Force photo by Senior Airman Kimberly Nagle/Released)