BIOLOGY IS THE STUDY OF LIFELife is everywhere, thriving in the city and in the country, teeming in ecosystems around the planet-in deserts, oceans, and even the Arctic. And life is right outside your door! Backyard Biology invites children ages 9 and up to investigate living things-especially in yards, parks, nature areas, and playgrounds. Trivia and fun facts bring animals, plants, and microorganisms to life, in all their wonder.Readers become Nature...

Presents information on fire dogs, including which are the best breeds, how they are trained, how they partner with firefighters, and explains the dangers of the job. Includes glossary.

Explores the innovation and physical science behind bridges and tunnels, featuring illustrated, step-by-step instructions for twenty-five projects designed to help students learn about the engineering process.