¿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.

Los limones no son rojos, ni las zanahorias moradas... Eso casi todos lo sabemos. Pero no sabíamos cuán sorprendente y creativa puede ser una introducción al mundo del color para los más pequeños.

¿Cómo harías de tu vida algo fantástico? ¿Cómo escaparías de la monotonía del mundo real? ¿Cómo te alejarías de los aburridos seres humanos? Y cuando tu obsesión por vivir en un mundo fantástico, tan diferente de aquel que todos los demás ven, se cumpla finalmente... ¿cómo distinguirás la realidad de tu propia fantasía? Sed bienvenidos a la mente de Kala, un lugar donde la peculiar interpretación de las situaciones que vive nos sumergirá en un mundo extraordinario, en el que realidad y ficción se mezclan y conviven a un tiempo sus amigos reales con presencias imaginarias...

How much life can one cubic foot hold? Read how photographer David Liittschwager and zoologist Chris Meyer studied life in one cubic foot, and how their findings can teach us about life on the entire planet. Created in collaboration with the Smithsonian Institution, this Spanish Informational Text builds reading skills while engaging students' curiosity about STEAM topics through real-world examples. Packed with factoids and informative sidebars, it features a hands-on STEAM challenge that is perfect for use in a makerspace and teaches students every step of the engineering design process....

Ice cream is a solid. But when it melts, it becomes a liquid. Solids can change to liquids and back again by melting and freezing. Read this Spanish-translated book to learn what happens when heat and cold and solids meet.