Dallas March for Science
9 a.m. rally at Dallas City Hall, 1500 Marilla St.; 10 a.m. march to Fair Park
Fort Worth March for Science
Noon-3 p.m. UNT Health Science Center, 3500 Camp Bowie Blvd., Fort Worth
Denton March for Science
1-3 p.m. University of North Texas Environmental Science Building, 1704 W. Mulberry St.