I got this book 2 years ago for free, today it is $0.73. Yeah, I know very expensive. It is just a bunch of fun scientific facts. I got it in hopes that one of the fun facts would prompt the girls to in search of more on something that they read. They tend to fight me on these things, but I keep working on it. I even started collecting "History's Mysteries" for them to research. I may write these items on cards for them to research, too.
I did enjoy reading through the facts, at the end, there were some fun quotes from scientists.