Exhibits and activities from 10 a.m. to sunset, Saturday, April 16, include demonstrations on how to use solar energy to generate power at home, cook food and heat water. Samples of solar-cooked food are available. Solar-powered music, children's activities, solar appliances and presentations on solar technologies and energy conservation also are featured. $7 per car park admission; the solar event is free. Call 302-4636, or visit citizensforsolar.org for more information.