Operation Ouch Issue 10 - Super Spurter

In this issue: The rib-tickling adventures continue in Operation Ouch Issue 10. In this issue, read about the important role your ribs play in helping you breathe and protect your heart and lungs, and challenge your friends to a friendly game of Rib Run! You'll also learn about how water moves inside your body's cells through the process of osmosis by making an egg-citing egg fountain. Plus, find out how well humans can hear compared to other animals - you might be surprised which creature wins! With brain-busting puzzles, creative crafts and fun experiments, Operation Ouch 10 has it all.