Discover it Yourself: Inside the Body is packed with scientific facts, experiments, and activities linked to the human body. It brings a lively, hands-on approach to practical science experiments. Children can find almost everything they need for the experiments around the home, and the materials and instructions are simply, safely, and clearly presented. This STEM-focused book will show readers how to test their fitness and reflexes, find out how much air you can expel from your lungs, measure their heart rate, and much more.