Cómo funcionan los juguetes (How Toys Work)

Readers will be amazed to discover that every time they climb onto bicycles and ride like the wind, they are defying gravity! This book explains the physics and history behind bicycles, skateboards, and surfboards. Readers learn what happens from the simplest movement of rolling forward to more complex tricks and stunts of jumping and spinning. Readers will never look at bikes, skateboards or surfboards the same way again.

What does this Spanish-translated book, a table, and your big toe have in common? They are all solids! A solid keeps its shape and always has the same volume. Read this Spanish-translated book to learn about solids and how they are different from liquids and gases.

Readers may never expect that they might free fall to Earth, but if they have ever dived into a pool, that's exactly what they've done. This book shows readers how Newton's three laws of motion affect divers, skydivers, and mountain climbers' movements. Readers discover who uses gravity, and who works against it, and all other forces that contribute to a successful dive or climb. After reading this book, readers can decide if they will ever be interested in engaging in one of these extreme sports.

Take a trip to the Everglades as you practice addition! About one million people visit Everglades National Park every year to see the unique animals, reptiles, birds, and fish that call this unique place home. Students will practice addition within 100 while engaged in reading about the Everglades. This nonfiction math book combines math and literacy skills, and uses real-life examples of problem solving to teach subject area content. The full-color images, intriguing sidebars, practice problems, and math diagrams make learning math concepts relevant and fun. Text features include a table of...

When they were teenagers, George and Natalia fell madly in love, but his being American and her being Spanish forced them to separate. Ten years later, they meet again and those feelings resurface with overwhelming force. Nat, aware of her difficult personal situation, refuses to give love a chance, but George is not ready to lose the woman he has always loved.

Presentan conferencias con relación a la Encíclica Social del Papa en el Centenario de la Rerum Novarum y la relación de la Iglesia el Estado y la sociedad, como artículo extra uno sobre el diablo. (ITESO), (ITESO, Universidad).

JÓVENES, REBELDES, DECIDIDOS Quieren más libertad, más justicia, más diversidad. Luchan contra el cambio climático, el racismo, la violencia, la pobreza y la corrupción. ¡Y llevan años haciéndolo! Los adolescentes han tomado la iniciativa para pronunciarse contra las injusticias y alcanzar grandes cambios. Su valentía y convicción nos inspiran. Estas son sus historias. EL ACTIVISMO NO ENTIENDE DE EDAD