Exploremos las rocas sedimentarias (Exploring Sedimentary Rocks)

When winter hits, many people in colder climates spend most of their time indoors. But what do wild animals do? Some animals spend winters hibernating. Beginning readers will learn what hibernation is, why some animals hibernate and others don't, and how hibernating animals prepare for their long sleep. Full-color photographs grab readers' attention and allow them to draw connections to the narrative. Readers will love learning about this mysterious, restful time in some animals' lives.

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.

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.

Esto no es un aguacero comœn y corriente. DespuŽs de los rayos, vienen los truenos. ÁEs una tormenta! Descubre m‡s sobre las luces gigantes que saltan en el cielo y quŽ produce los truenos en este libro sobre las tormentas.

Susana y Alfredo son hermanos mellizos y cada uno, por su cuenta, quiere formar una pandilla con sus amigos del colegio. Una de chicas, una de chicos... Ambas pandillas se pondrán pruebas para ver quién hace las cosas mejor. ¿Hasta qué punto la unión es más importante que el orgullo? Una novela que demuestra que es mejor olvidar los prejuicios.

Healthy Habits is a collection of four stories featuring the Chiminis, fictitious characters that live in the forest and are as small as pine cones. In each story, one of the Chiminis has an adventure that highlights the importance of hygiene, a good diet, and exercise, and offers general health advice.

Disfruta enseñándoles a tus hijos los nombres Hebreos de los artículos del hogar con nuestro Libro de Actividades Aprendiendo Hebreo: En la Casa. Desde la cama al baño, del cuchillo al tenedor, tiene 23 palabras Hebreas para enseñarles. Además, muchas oportunidades para que tus niños practiquen coloreando y escribiendo lo que han aprendido. ¡Tarjetas didácticas, actividades de trazado y páginas para colorear hacen que aprender Hebreo sea divertido! Este libro está diseñado para complementar la base aprendida en nuestro Libro de Actividades del Alfabeto Hebreo. Creamos ambos libros ...