Connolly School continued its series of grade-level science fairs with a recent fourth-grade presentation that included projects that answered some interesting questions. Attendees learned that a darker roof attracts sunlight and helps to keep a house warmer; why the sky is blue, and other colors at times; how fish camouflage themselves under water; and how a bird on a single wire can perch unharmed, yet resting on two wires at once is not such a good idea. Students followed the scientific method, posing a question and developing a hypothesis before embarking on their experiments.