The Waupaca Area Public Library’s first Community Science Fair is on exhibit through Saturday, Feb. 16.
The judging of the entries took place on Jan. 5, in the library’s lower-level Exhibit Room.
The winner in the Experimental Category was “A Sugar Rush,” which included Aliyah Hansen, Alona Bruno and Joni Hansen.
Their hypothesis was that by giving a plant caffeine, the plant would “get a boost” and get bigger.
They planted two African violets – watering one with plain water and the other with water with diluted caffeine pills.
They found that the caffeine hindered the growth of the plant.
The group received 190 points out of a possible 200 from the event’s two judges at the event, the most overall.
The winner in the Demonstration Category was the group “Hemmilayans,” which included Mike, Christa, Ryan, Erik and Clarie Hemmila.
Their question was, “If sodium hydrogen sulfate and table salt are heated, will we create hydrogen chloride gas?”
They proved their hypothesis, and, when they added the gas to water, they also created hydrochloric acid.
They received 165 point from the two judges, the most in the Demonstration Category.
The winners in each category received $100 from the Waupaca Library Foundation.
Each entry received a medal and passes to a local museum.
Other entries included a worm farm, an erupting volcano, a digitally controlled intersection light and a robot.
Those who visit the exhibit may also try a number of the science experiments, available for the length of the exhibit.