¿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.

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.

Readers will learn about arachnids, insects, arthropods, and even parasites in this fascinating, Spanish-translated nonfiction title. Featuring photos of these tiny creatures (some up to 100 times their normal size!), informational text, a glossary, and an index to aid in vocabulary development, this book will have children eager to learn more about these tiny creatures and the big impact they have on human life! This 6-Pack includes six copies of this title and a lesson plan.

People have been mystified by the Milky Way since ancient times. The Milky Way contains over 200 billion stars, but it is also made up of gases, dust, stars, planets, and solar systems. With detailed images and fascinating sidebars, this nonfiction Spanish book explores the Milky Way in depth, and introduces students to new concepts, vocabulary terms, and STEM topics. Aligned to state and national standards, the leveled text supports students reading at above-, below-, and on-grade level. The fun lab activity encourages students to think like scientists. Keep students engaged in learning with ...

"Amelia Earhart was a woman of many ""firsts."" In 1932, she became the first woman to fly solo across the Atlantic Ocean. In 1935, she also became the first woman to fly across the Pacific. From her early years to her mysterious 1937 disappearance while attempting a flight around the world, readers will find Amelia Earhart's life a fascinating story."

Éste es un libro pensado para estudiantes de lengua española de un nivel medio (bachillerato, primeros cursos universitarios), para los que la gramática puede resultar una materia excesivamente árida y complicada. En él se presentan de forma ordenada los principios básicos de la morfología y sintaxis del español, con explicaciones detalladas, múltiples ejemplos y prestando una atención especial a aquellas cuestiones que generalmente provocan mayores problemas de comprensión. El texto está dividido en tres grandes partes. En la inicial se trata de cuestiones generales sobre la...