What is an ocean? How do waves form? What lives at the bottom of the sea? This children's book helps inquisitive minds find out the answers to all the questions they may have about seas and oceans, and some they hadn't thought of! Featuring amazing sea creatures, geological wonders, and marine exploration, Did You Know? Ocean lets children dip their toes into oceanography and explore its incredible depths. Each page asks and answers a different question, and features a quick quiz designed to cement new knowledge. Bursting with mind-boggling details and fascinating facts, this visually stunning book will be treasured by every young ocean enthusiast.