Cathedral’s Kirtsen Sanguinetti pours sand into a bucket hanging from the top of a wooden tower she and Mallory Hinson made for the 2018 Southwest Regional Science Olympiad at the Natchez campus of Copiah-Lincoln Community College Saturday. The weight of the sand tested the overall strength of the tower and the tower’s efficiency. Sanguinetti and Hinson took gold in the tower category. (Ben Hillyer / The Natchez Democrat)

Paxton Junkin and Chase Kaiser, at top, also took gold with their battery buggy that missed traveling to a 9-meter target by 5 centimeters. (Ben Hillyer / The Natchez Democrat)

Paxton Junkin and Chase Kaiser, at top, also took gold with their battery buggy that missed traveling to a 9-meter target by 5 centimeters. (Ben Hillyer / The Natchez Democrat)