The Northern Michigan University Seaborg Center will hold “Winter Weekend College for Kids” for students in kindergarten through 7th grade. Sessions will meet from 9 a.m. to noon on the following Saturdays: Feb. 7: Penguin Families, Grades K-1; Sound Energy, 2-3; Food Chemistry, 4-5; Gravity Rules, 6-7. March 21: Sifting through Science, K-1; Chemical Testing, 2-3; Microscopic Explorations, 4-5; Color Analyzers, 6-7. April 18: Bubble-o-logy, K-1; Light Energy, 2-3; Wildlife Ecology, 4-5; More than Magnifiers, 6-7. Registration is $5 per child. For more information or to register, contact the Seaborg Center at 227-2002.