This 23-minute videotape aims to give children, grades K-4, a broad understanding of the center of our solar system, the sun. It explains how the sun provides us with life-giving light and heat, how it's responsible for our seasons and weather, and why it's the primary source of energy on Earth. A hands-on activity in which children create their own solar oven is presented. This program is based on the concepts outlined in the National Science Education Content Standards for Earth Science: Properties of Earth Materials, Objects in the Sky, and Changes in Earth and Sky. (WRM)