Scottsdale Mall was abuzz with all kinds of cool displays by young scientists Thursday for the Delta School District’s annual Science Fair. Each display involved students asking questions, making predictions and planning, investigating and carrying out data collection, as well as trying to make sense of their findings. They judged what worked and what didn’t and shared what they learned with others. The schools that participated this year included Annieville, Cliff Drive, Devon Gardens, Gibson, Gray, Heath, Jarvis, Ladner, NDSS, Neilson Grove, South Park and Sunshine Hills.