-What causes weather? -Why are some parts of the world hot when others are cold? -What was the fastest wind speed ever recorded? Do It Yourself offers an exciting new approach to understanding and investigation. Each book helps you conduct your own experiments and activities to learn more about the [...]

A small, fierce dinosaur follows its nose. Its tail helps it balance. Then it sinks its sharp teeth and claws into its next meal. Was that a Velociraptor? Or was it a Deinonychus? These dinosaurs looked similar, but they were very different. Read this book to become an expert at telling these look-a[...]

A fearsome dinosaur stomps around on two legs. It swipes its sharp claws and shows off its pointy teeth. Was that monster a Giganotosaurus? Or was it a Spinosaurus? These dinosaurs looked similar, but they were very different. Read this book to become an expert at telling these look-alikes apart[...]

A dinosaur sticks its tiny head between the trees. It reaches for plants with its long neck and spoon-shaped teeth. Was that beast a Brachiosaurus? Or was it an Apatosaurus? These dinosaurs looked similar, but they were very different. Read this book to become an expert at telling these look-alikes [...]