内容简介：
Why is the sky blue? How do see-saws work? What's ooblech? This series provides fun experiments and explanations that answer all sorts of questions and tie into the K-4 science curriculum. The books will surprise your students with the realization that science is not just in the classroom -- it's in the kitchen, in their food, in the gym, in the playground, in the car -- it's even right in their own backyard The gym is a place where kids can explore their bodies. This title helps them take the exploration one step further, to see why the games and exercises they do in the gym work the way they do.