Exploremos los minerales de la Tierra (Exploring Earth's Minerals)

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.

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.

Let’s Make a Volcano Spanish Edition. What do you know about a volcano? When a mountain erupts, it explodes! Hot melted rock, called lava, comes out of its top and flows down the side of the mountain! People need to keep away from real volcanoes, but you can have fun making your own volcano!

This guide gathers a selection of more than 500 species of vertebrate animals cataloged and arranged in colored illustration. It is an exhaustive and complete guide that provides precise information about each species, and that captures all the beauty and diversity of the vertebrate world in spectacular design and with enthralling visuals.

El tercer libro de ciencia para niños del científico Gabriel León. En esta nueva entrega de la serie de ciencia para niños de Gabriel León, Pachi, su papá y el perro Lukás se sumergirán en el mundo de las preguntas raras sobre el Universo. ¿Por qué los planetas son redondos? ¿Por qué titilan las estrellas? ¿Por qué me sigue la Luna cuando camino? ¿Por qué Marte se ve rojo? ¿Por qué la Vía Láctea se llama así? Son algunas de las interrogantes sobre el espacio que serán abordadas con un toque de humor y cotidianeidad.

Presenta varios experimentos en cronometría. Para estudiantes de primaria (grados 4-6) y de secundaria (grados 7-9).