Flash Freebie - PBL!

I have posted my first real PBL unit on TPT and I am kind of nervous.   I would love some FEEDBACK, so I am putting it up as a flash freebie until midnight tonight!   Please go check it out and leave me some feedback!

Thank you !
 http://www.teacherspayteachers.com/Product/Amazing-Amelia-Earhart-A-Project-Based-Learning-Unit-For-Elementary-Students-817681