My Big Book of Answers - How Does It Works ?

The most fun, fact-filled flap book in the World!brbrHow does an airplane stay in the air?brWhy do you have bones?brbrLift the flaps to find the answers to these and many more fascinating questions.brExplore the world one answer at a time with this big book of fun explanations about how things work.brbrWhy does the Earth shake during an earthquake?brbrDon't miss ...brAnimalsbrDinosaursbrThe World