The Museum of Nature & Science is ending the summer with special events and exhibits over Labor Day weekend from September 3-5. Two popular traveling exhibits, Chinasaurs about rare Chinese dinosaurs and Charlie and Kiwi's Evolutionary Adventure about evolution, will have their last day on Labor Day. Free stage shows Fire & Ice and Electric Theater demonstrating science concepts will perform throughout the weekend. It will also be the last weekend for extended summer hours before returning to the regular schedule.