Super Busy-Science Fair

I have been so super busy I have barely had time to breathe! I have officially finished grad school this week, with lots of presentations and projects, and had an interview. My school is doing a science fair, which we just found out about today. So I need some ideas! I want to make it simple, engaging, and relevant to first graders. If you have any suggestions please share! This will be my first science project with students so I need all the help I can get.

P.S. I'm super excited to have 26 followers! Thanks!