This is the seventh book I have bought from the Apologia series. They are all well written and full of information presented in a way to keep my children interested. I especially appreciate the Christian perspective. I will definitely continue to use this line of science books.
I used this book in a homeschool co-op class that I taught. I loved it and so did the kids! It kept the children engaged and they retained lots of facts. We did not do all of the activities suggested, but did many of them, and made our own, too. I am definitely sold on using Apologia science from now on.