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

When rocks change because of environmental conditions, the new rocks are called metamorphic rocks. A rock's chemical or physical makeup may change because of conditions such as temperature, stress, or pressure. Your readers will learn fascinating facts including where metamorphic rocks are most commonly found, the different types of metamorphism, and how metamorphic rocks are identified. Full-color photographs depict these rocks in nature. A helpful graphic organizer shows how these fascinating rocks form.

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.

English Spanish bilingual children's book. Perfect for kids studying English or Spanish as their second language. Little Jimmy doesn't like to brush his teeth. Even when his mother gives him a brand new orange toothbrush, his favorite color, he doesn't use it like he is supposed to. But when strange and magical things start happening to Little Jimmy, he begins to realize how important brushing his teeth can be. I love to brush my teeth is a delightful story full of beautiful illustrations sure to get your little ones attention. If your child is having difficulty learning to brush their teeth...

¿Qué hace un abuelo científico para explicarles a sus nietos todas esas cosas que seguro que algún día querrán saber? Fácil: crear un blog e ir contando en él todo lo que le apetece: por qué los viajes espaciales son tan importantes como los museos, por qué es más fácil desordenar una habitación que ordenarla, cuántas probabilidades hay de que caiga en la Tierra un meteorito realmente grande... ¿Y si luego no son solo sus nietos los que se aficionan a leer el blog, y se crea un círculo de amigos a distancia? ¿Y si no todos esos amigos son quienes parecen ser? Mezcla de libro...

En este libro la autora comparte con nosotros sus vivencias estivales, el encuentro con sus catorce nietos, las divertidas anécdotas, los temas que van surgiendo: la naturaleza, el amor, la vejez, la violencia, la pobreza, la amistad... y sus reflexiones sobre la vida y el paso del tiempo.

Introduces the former Duke University basketball star, Grant Hill, who now plays for the Detroit Pistons.