El cielo nocturno

Three Quarters Of Our Earth Is Blanketed By Water. How This Water Is Used, From Bathing To Irrigating Crops Is Addressed. That Water Travels In A Never-Ending Pattern Called The Water Cycle. Tips On How To Conserve Our Most Important Natural Resource Are Included.

This Ever Popular Subject Is Explained In Detail In This Wonderful Book. How The Earth Is Made From Rock, The Three Different Types Of Rock And How They Are Made And Where They Can Be Found. Talks About How Fossils Are Formed From Sediment And What Role That Plays In Helping Us Learn About Life Long Ago. Talks About How These Fossilized Plants And Animals Became The Fossil Fuels That Are So Important To Our Present And Future Life On Earth.

Readers will learn about arachnids, insects, arthropods, and even parasites in this fascinating, Spanish-translated nonfiction title. Featuring photos of these tiny creatures (some up to 100 times their normal size!), informational text, a glossary, and an index to aid in vocabulary development, this book will have children eager to learn more about these tiny creatures and the big impact they have on human life! This 6-Pack includes six copies of this title and a lesson plan.

There is growing concern over how we behave and interact online, from fighting, incivility, rudeness, and even criminal behaviors like cyberbullying, to simply adapting old forms of etiquette to a new landscape. This book, updated from an earlier resource, provides younger readers an introduction to this timely topic, a subject that they are both engaged in forming themselves as "digital natives," and one they also often require guidance in. It informs readers about the polite and productive use of social media networks and mobile platforms and discusses pressing issues of etiquette within...

November 1940. A circus parade walks through the streets of Warsaw, waving a flag and singing. They are 160 Jewish children, forced by the Nazis to leave their beloved orphanage. It's a sad occasion, but led by Doctor Korczak, their inspirational director, the children are defiantly joyful. Their new home is in the ghetto, a prison for Jews. Two years later they board the train that will carry them away to the death camps. Offered his freedom, Doctor Korczak refuses to abandon the children and proudly joins them on their last journey. This profoundly moving illustrated book is based on the...

Interesting facts and experiments explore the dynamics of a race car engine to teach about air flow and drag, safety equipment and roll cages, the fuel system and horsepower, suspension and track bars, internal combustion, why race cars don't have speedometers, how roof flaps are designed like airplane wings, and more.