¿Por qué hibernan los animales? (Why Animals Hibernate)

Diamonds and salt are both minerals, but diamonds are more rare than salt. Curious readers will learn what physical and chemical conditions must be present for minerals to form. They'll discover how minerals are identified and how they are used in daily life. Informative and interesting text presents readers with this science content in a fun way. A graphic organizer shows how different minerals are identified and fact boxes provide readers with exciting supplementary information.

The rock cycle has been taking place for millions of years. However, geologists have only known about this phenomenon for about 300 years. Young terrestrial explorers are introduced to different types of rocks, where in the cycle these rocks fit, and where in Earth's layers each step takes place. Fact boxes provide readers with fun additional information. A diagram helps readers make sense of the new information they're learning.

Los refranes son sentencias cortas que nos acompañan a lo largo de nuestra vida. Los oímos continuamente en una conversación casual, una exposición formal, un consejo fraterno o un reproche hostil. Breves pero significativos, muchas veces resuelven situaciones confusas o absurdas. Por eso, son considerados como proverbios indiscutibles que, a pesar de desconocer su origen, se repiten una y otra vez, sin cuestionar su contenido o su forma. La sabiduría popular y los refranes siempre han ido de la mano. Myriam Rodríguez y Javier Correa, autores del libro, utilizan los refranes como excusa ...

Score book of 50 traditional children's popular songs in Spanish, with standard scores and TAB´s. A very good resource for learning to play the ukulele and learning vocabulary in Spanish. Complete lyrics, score with the melody, chord encryption chart, scores with TAB's which makes it easier for us to relate the two types of score. Repertoire included: ¿Dónde están las llaves? A mi burro le duele la cabeza A mi mono le gusta la lechuga A ram sam sam Ahora que vamos despacio Al corro de la patata Al pasar la barca Al pasar por el cuartel Al pavo pavito pavo Allá en el rancho grande Antón...

This illustrated book shows how four lads from Liverpool came to form the most popular musical group ever...the Beatles! It explains the inspiration behind some of their biggest hits and offers insight into important events happening during the time. A timeline and a glossary are included.

As they say, necessity is the mother of invention, and this book introduces readers to 14 women who invented very useful, helpful items. They include Chicago native Margaret Wilcox who invented the car heater, Indiana native Marion O'Brien Donovan who invented disposable diapers, Pennsylvania native Stephanie Kwolek who invented Kevlar, and Austria-born actress Hedy Lamar whose secret communications systems led to the creation of WiFi, Bluetooth, and GPS.