I had the privilege of using this book as a guideline for teaching a group of "home school" youngsters from 1st-9th grade. Science can be a scary subject to those of us who remember the mean and fierce physics/chemistry/biology teacher. Mr. Parker makes science enjoyable and exciting creating a feeling of glad anticipation for the next lesson. The experiments are easy and help the children visually see the workings of this majestic creation called the human body. My students specifically enjoyed the experiment having to do with how the inner ear works. Please do yourself and your kids a favor by buying this book. You will learn to love science for the first time in your life.