Registration is open for the MK Nature Center's exciting new Junior Naturalist Certification Program for fourth-, fifth- and sixth-graders. The program is designed to stimulate children's natural curiosity and sense of wonder, to help them learn about their natural environment and to become stewards of the earth. It will be held over Spring Break, meeting from 9 a.m.to 3 p.m. Monday through Friday, March 26-30, and also after school on Monday afternoons, from April 2-April 30. Participants will learn through observing, exploring and questioning; explore the basics of water, trees, plants, mammals, reptiles and amphibians, birds, fungi and weather; study sustainability; participate in a volunteer environmental activity; and earn junior naturalist certification. Program fee is $75. Contact Sara Focht at MK Nature Center at 287-2906 or firstname.lastname@example.org for registration information.