Kids can learn about the earth, from the bottom of the ocean to the top of the sky. Centered on hands-on learning, this class will teach students all about the natural world. Subjects include geology, weather patterns, the four seasons and their effect on the earth’s inhabitants, erosion and even volcanic eruptions. Indulge your child’s curiosity and inspire scientific inquiry into the natural world. Ages 3½ to 6. $40. 9:30–11 a.m., Glen Lake Room, Glen Lake Activity Center, 14350 County Rd. 62, Minnetonka; 952.939.8203; recserv.hopkinsminnetonka.com.