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As a land that’s constantly in flux, Earth sometimes reveals clues about the plants, animals, and other organisms that lived long ago. Fossils teach us much about what life was like millions of years ago, answering the questions of how Earth changed and maybe even why it changed. This essential Earth science topic is thoroughly explained through manageable text, fact boxes, informational charts and diagrams, and a glossary and index. Readers will become young Earth detectives by the time they’re through with this text!

Photosynthesis is the basis for all life on Earth! This exciting and sensitive book looks at how plants take a gas that is poisonous to people and animals and, with the help of the Sun, create food and oxygen for all creatures. Children will delight at learning about the little chloroplast factories inside the leaves of plants and become aware of how important plants really are! Children of all ages will love this book!

Provides an overview of the design, uses, weapons, and equipment of U.S. Navy submarines. Written in English and Spanish.

El autor y el ilustrador de Los Futbolísimos presentan un nuevo libro de la serie Los Forasteros del Tiempo. Ya sé que suena un poco raro, pero de un tiempo a esta parte no hago más que viajar en el tiempo a través de un agujero negro. Bueno, yo solo no, me acompañan mis hermanos, mi padre y unas vecinas. Esta vez hemos aparecido en el imperio romano, que es una época muy interesante y emocionante, y además hemos conocido a un montón de amigos nuevos; yo, incluso, me he convertido en gladiador y he luchado contra un león. Aunque en realidad lo que de verdad deseo es volver a casa con ...