Los sólidos (Solids)

From Stonehenge to the Bermuda Triangle, there are many places on Earth that remain a mystery to scientists! Readers will discover these curious places--and more!--as they move through this fascinating, Spanish-translated nonfiction title. This mysterious book features detailed images, informational text, and stimulating facts and theories in conjunction with upper-level features, such as chapter format, a glossary of terms, and an index.

Read Along or Enhanced eBook: From Stonehenge to the Bermuda Triangle, there are many places on Earth that remain a mystery to scientists! Readers will discover these curious places--and more!--as they move through this fascinating, Spanish-translated nonfiction title. This mysterious book features detailed images, informational text, and stimulating facts and theories in conjunction with upper-level features, such as chapter format, a glossary of terms, and an index.

The need for speed is the motivating factor in this engaging, Spanish book. Readers learn the history of travel from the very slow to the supersonic and beyond, including everything in between. They learn and discover the factors that influence motion for all types of vehicles: land, air, and water alike. They also learn different ways to measure speed and read about energy uses for different vehicles. With greater speed comes greater risk. Readers learn how engineers are always seeking new and better ways to keep people safe as they travel faster and go farther.

Learn the secrets to artful cupcakes, oven-fresh bread, and other delicious baked goods in this delightful nonfiction title. Readers will learn how mathematics helps bakers measure their ingredients to make tasteful treats. Featuring vibrant images and charts, informative text, and fun, intriguing facts, this Spanish-translated nonfiction book will leave children fascinated by all the details that go into baking their favorite treats--like doughnuts and cookies!

California became a territory in the United States when the Treaty of Guadalupe Hidalgo was signed in 1848. That treaty ended the Mexican War. Several days before its signing, gold was discovered at Sutter’s Mill in what is now Sacramento. The non-Native population of the territory was less than one thousand in 1848, but the gold rush increased that number to one hundred thousand by the end of 1849. The gold rush not only made many people wealthy, it brought ecologic devastation while speeding up California’s statehood. This book richly explores this interesting history.

Estás creciendo y en tu cuerpo se producen cambios, este libro te ayudará a entenderlos. Si eres una chica: llega la menstruación, tus pechos se hacen notar, aparecen pelos y te quieres depilar. Si eres un chico: te sucede algo desconocido mientras duermes, descubres nuevas sensaciones, transpiras mucho y no te quieres bañar. La licenciada Alicia Guzmán te cuenta cómo es esta etapa única del crecimiento, maravillosa y a la vez difícil: la pubertad. Con los dibujos de Petisuí sonreirás como quien se mira al espejo. Autora: Alicia Guzmán

Updated for 2020, this eBook discusses how counting is used in games, in taking turns, in putting things in order, and in telling when things happen.

Por qué covid asusta al mundo & Covid está aquí, ¿Y ahora qué? En este libro la historia continúa desde el punto de vista de Covid. ¿De dónde viene Covid? ¿Por qué Covid se puso tan agresivo? ¿Por qué infectó a la gente? ¿Cómo llegó a Alemania? ¿Cómo podemos protegernos? ¿Quién soy yo? ¿Qué estoy haciendo en el cuerpo humano? Cómo los médicos quieren acabar conmigo. Cómo respondió el mundo a la pandemia. El misterio del papel higiénico.