Check out this Freebie Lab Report Template I have created, perfect for your young scientists! Send me an email at email@example.com and I will be happy to attach back the Word document so that you can adjust it, with my permission to fit any science investigation.
Also added to my TpT store is my Mystery Bag, take home activity. My students love guessing what's inside, and so do I. For those who know me, I get quite competitive--even with the first graders! Here's a photo of what this great activity looks like. Get it made before school starts (if it hasn't for you already).