My son would like to use next years science fair as an excuse to hatch eggs. He will be in 6th grade and is strong in math and science . Any suggestions for potential "experiments"? We havnt purchased an incubator yet, but have been looking at the GQF Hova-Bator (holds 50 eggs). We would like to hatch out layers and are not overly concerned with breed (but his favorites are orpingtons and brahmas). We will be keeping some and have homes set up for any additional babies (and there is always craigslist). The rest is fairly up in the air at this point. Any suggestions are greatly appreciated.