On Mother's Day, we thank moms with half off! Regular admission is $9 for children and adults, $8 for seniors, and free for infants under 12 months and Discovery Center members. Admission lets you play all day at the Kansas Children’s Discovery Center with over 15,000 square feet of indoor educational exhibits exploring science, careers, art, building and more, a 4.5 acre certified Nature Explore Outdoor Classroom and special space for babies and toddlers to explore.