What if you wanted to send a message that only a few people could understand? That is when you would use secret signs. Readers will be intrigued by the examples of codes and ciphers used by ancient an
Offers information about grief after having experienced loss, going over the ways that grief is commonly experienced, the problems it can cause, ways of dealing with one's own grief, and helpful ways
Presents, in question-and-answer format, information on animals, including why bats use sonar, how different types of mammals are related, and why spiders only eat liquid food.
Presents, in question-and-answer format, information on Earth, including why the Atlantic Ocean is getting wider, how bacteria live in deep rocks, and what makes Earth the only planet with life.
Examines the role of science and technology in baseball, covering the importance of fitness and nutrition, the energy used in pitching, forces that work against a batter, ballpark design, and baseball
Examines the role of science and technology in cycling, covering the importance of nutrition, aerobic training, bicycle design, aerodynamic gear, and the forces behind various cycling skills.
Takes young readers to the most fascinating places the world has to offer to show them the unique features of each environment, the plants and animals that live there, and how humans work to make thes
"This book takes a look at what a space home might look like and what it would take to live on Mars--the Red Planet (or any other place in space, for that matter). From the Mars ice home of the future
"Go on campaign in the Middle Ages and live through castle sieges and the fierce battles that changed history, including the Wars of the Roses and the Crusades. Castle defenses, life on campaign, medi
The universe is full of mysteries: How did it all begin and where might it end? Will we ever travel in time? Can we do it already? Space Mysteries Revealed throws light on these conundrums and answers
Takes young readers to the most fascinating places the world has to offer to show them the unique features of each environment, the plants and animals that live there, and how humans work to make thes
"Should athletes who used performance-enhancing drugs be stripped of their medals? Can video games help build important skills? Every day, we hear arguments about issues in sports and entertainment in
