Phoenix is the state capital and has a wide range of museums and other Arizona attractions. The Arizona Science Center presents shows in the planetarium and films on the five-story Imax Theatre screen. There are demonstrations on different subjects, such as electricity, magnetism and gravity. Exhibits include aerospace, weather and energy conservation. The center can be found in the Heritage and Science Park. Children enjoy going to Summer Science Camp, which is run by the center. One of the other Arizona attractions is the Heard Museum, a museum dedicated to Native American art and artifacts, including Hopi dolls and jewelry. The Phoenix Zoo has four sections divided into themes. There is the Africa Trail, the Tropics Trail and the Discovery/Children’s Trail. The Arizona Trail contains local wildlife and native plants.