Gente joven, A2.2

First readers will begin to learn and identify shapes, which are the building blocks for learning math.

Although Earth is mostly made up of igneous and metamorphic rock, sedimentary rock covers about 75 percent of Earth's land surface. This means it's the most visible kind of rock on Earth. Sedimentary rocks form when sediment accumulates and compacts. Your readers will learn how sedimentary rocks form, the different types of sedimentary rocks, and how people use sedimentary rocks. Fun fact boxes provide readers with additional information. A helpful diagram illustrates how sedimentary rocks form.

Christopher Columbus most likely wasn’t the person to discover the Americas. He wasn’t even the first European to do so! Despite that, his three trips to the Western Hemisphere led to many more European explorers heading in that direction. In this volume, readers familiar with Columbus’s travels on the Nina, Pinta, and Santa Maria can learn who Columbus was beyond his travels. Supported by full-color and historic images, interesting main content turns what readers think they know about the life of Columbus on its head while expounding on an important period in the history of the world.

¡Explora el maravilloso mundo de la química! Aprende junto con las químicas inspiradoras cuyas innovaciones cambiaron el mundo. Descubre el poder de la curiosidad y la resiliencia a través de una conversación entre una protagonista joven y valiente que hace preguntas sobre el mundo a su alrededor, y un narrador científicamente astuto cuyas respuestas son exactas y comprensibles para las mentes jóvenes. Las mujeres en la química es el lugar perfecto para que los niños empiecen sus propios viajes de descubrimientos y maravillas.