California en el siglo XX (California in the 20th Century)

★“Fascinating...An appealing resource sure to spark an interest in biomimicry, from casual readers to budding scientists. Recommended for all libraries.”—School Library Journal, starred review Did you know that lamps can be powered by glowing bacteria instead of electricity? That gloves designed like gecko feet let people climb straight up glass walls? Or that kids are finding ways to make compostable plastic out of banana peels? Biomimicry, the scientific term for when we learn from and copy nature, is a revolutionary way to look to nature for answers to environmental problems such...

A thoughtful discussion of violence in schools, complete with examples of incidents and suggestions for coping.

Read the fun clues on each page and lift the flaps to discover animals and the sounds they make and learn English words along the way! Full of first words and colorful photographs, Who Am I?/¿Quién soy? is the perfect way to introduce a second language. The carry-along handle makes it easy to read this board book anytime, anywhere!

When President Thomas Jefferson bought the Louisiana Territory from cash-strapped France in 1803, he doubled the size of the United States without really knowing what he was getting. He dispatched Meriwether Lewis and William Clark and their Corps of Discovery to explore a territory that would include part or all of fifteen future states and to seek a water route to the West Coast. Westward expansion began immediately, all for the bargain price of 15 million dollars. This book richly explores this fascinating part of history.