Operation Ouch Issue 9 - Fiery Fats

Brr! Is it just us, or is it starting to get a little chilly? In Issue 9 of Operation Ouch! magazine, learn all about how the fat in your body works to store energy, absorb vitamins, and keep you insulated and warm, and how the muscles in your face work to make you look like you. We also answer the age-old question: does it take more muscles to smile, frown, or pull an ouchtastic ouch face? Plus, you'll read about the science of stem cells, the building blocks of red blood cells, and the amazingly strong ligaments that hold your bones together. With puzzles galore, recipes, and craft projects, be wowed by Operation Ouch Issue 9