Our WA state HS conference is coming up in June, we just finished our Student Exposition Projects to display-WHEW! There were times this month when I didn't think they would. I presented this opportunity to my girls - 13, 11, 11- at the beginning of March, told them they had to mailed off by the last week of April, and that they would be responsible to complete their projects. All three were gung ho, then they got caught up with other things, started really putting it together 2 weeks ago, and they pushed through.
They all were so happy they persevered and accomplished their projects. Each one came up with their own project ideas. If your conference has an expo opportunity I would recommend it to your family.