Books in I didn't know that! series

Did you know that one plane had 200 wings? That some planes have none? That helicopters can fly upside down when they loop the loop? Discover for yourself amazing facts about flying machines, from the earliest hot-air balloons to the latest computer-controlled aircrafts that can change shape as they fly, in this awesome book all about planes. With a cover designed to grab a childs attention (including foil, spot UV, and embossing), and an immediately engaging interior filled with varying text lengths and density, diverse illustrations, dynamic layouts, and the most current information laid out in a captivating format, young readers will come back to this book again and again, building their science knowledge base as well as vocabulary. Fun facts, true or false quizzes, search and find features, clearly labeled graphics, and text boxes are designed to hold the attention of all types of learners, making the information accessible and interesting, as well as engaging and entertaining.

Did you know whales are mammals that breathe air? That some whales are heavier than the largest dinosaurs? That dolphins help each other when they are sick? Discover for yourself amazing facts about whales and dolphins what they eat, how loud the humpback whales call can be, how they have babies, who their worst enemies are, and more, in this awesome book all about whales! With a cover designed to grab a childs attention (including foil, spot UV, and embossing), and an immediately engaging interior filled with varying text lengths and density, diverse illustrations, dynamic layouts, and the most current information laid out in a captivating format, young readers will come back to this book again and again, building their science knowledge base as well as vocabulary. Fun facts, true or false quizzes, search and find features, clearly labeled graphics, and text boxes are designed to hold the attention of all types of learners, making the information accessible and interesting, as well as engaging and entertaining.

Did you know that trains opened up the American West? That some have several locomotives? That they can go upside down? Discover for yourself these and many more amazing facts about rail transport, from the earliest steam trains to the latest technology of the high-speed trains, in this awesome book all about trains! With a cover designed to grab a childs attention (including foil, spot UV, and embossing), and an immediately engaging interior filled with varying text lengths and density, diverse illustrations, dynamic layouts, and the most current information laid out in a captivating format, young readers will come back to this book again and again, building their science knowledge base as well as vocabulary. Fun facts, true or false quizzes, search and find features, clearly labeled graphics, and text boxes are designed to hold the attention of all types of learners, making the information accessible and interesting, as well as engaging and entertaining.