We are all passengers of the Earth as it spins, tilts and circles the sun. Learn about Earth's cycles of rotation and revolution, plus how they affect our lives through the days and seasons.

Learn what it's like to come face-to-face with some of the dinosaurs that once roamed the Earth through these "actual-size" illustrations.

A combined history of the Puerto Rican parrot and the island of Puerto Rico, highlighting current efforts to save the Puerto Rican parrot by protecting and managing this endangered species. Puerto Rican parrots, once abundant, came perilously close to extinction in the 1960s due to centuries of foreign exploration and occupation, development, and habitat destruction. In this compelling book, Roth and Trumbore recount the efforts of the scientists...

This book about the science of snow features photos of snow crystals in their beautiful diversity and includes how snow crystals are formed into different shapes and snow-crystal-catching instructions in the back of the book.

Discusses and gives examples of the size and weight of various animals and parts of animals.

A collection of nursery rhymes with vehicular themes, such as "Tow, Tow, Tow the Car" and "Twinkle, Twinkle, UFO".

Follows the planning, construction, and ultimate testing in battle of a typical fortress with adjoining town built by the English during the Middle Ages.

A journey through the fields, forests, ponds and wetlands to see how animals survive in the snowy winter months, and when the sun's rays grow stronger, join all the animals as they get ready for springtime.

Put on your hard hat and step inside the construction zone: you're invited on a virtual tour of a building in progress. Put on your hard hat and step inside CONSTRUCTION ZONE! Caution! Construction zone ahead! Anyone who has ever stopped to watch a big building going up - and who hasn't? - will be thrilled by this behind-the-scenes look at an amazing construction project. Young readers are invited to come on a virtual tour of a building in progress,...

"Leaves and bacteria, insects and fish, bears and people, too--we're all part of one big circle of growing and eating and living"--Inside front flap.