*En una tierra donde los dioses aún observan en silencio, la muerte de un rey nunca es el final… es el comienzo de la guerra.*Cuando el rey Torsten Grimsson cae, el Norte se tambalea al borde del colapso. Los juramentos se rompen, las alianzas se quiebran, y la ambición despierta en hombres que han esperado demasiado. Entre ellos está Björn Ulfsson, un líder despiadado que cree que el miedo es el único camino al poder; y Håkon, un guerrero nacido para liderar, pero no destinado a r...

The 20th century saw many new inventions. Changes came fast and made life easier. Cars, planes, TVs, and cell phones were all invented in the 1900s. What other important things were invented during this time? From electricity to emoji, this Spanish nonfiction book will keep students engaged in reading as they build their literacy, vocabulary, and comprehension skills. Important text features include a glossary, index, and table of contents. The Reader's Guide and culminating activity requi...

You can't make something out of nothing. This is because there are certain laws that everything in the universe follows. It may seem like magic, but it's really a matter of matter. Join physicists from past and present to uncover the magic of how matter changes yet remains the same in this physical science book. Fifth-grade readers will learn about physical and chemical changes; how mass, energy, and volume are related; discoveries that led to the law of conservation of mass, scientific wo...

Playing Tug-of-War, pedaling a bike, jumping rope - these actions all require force! We typically don't notice most of the forces around us, but they surround us all the time. Find out how force works, and then harness your knowledge to design and build like an engineer! Third-grade students will enjoy learning about inertia, tension and gravity, lift and air resistance, electric and magnetic forces, combined forces, and more through this high-interest informational text filled with vibran...

Tras el impacto del coronavirus en la economía mundial, y después de que el oro alcanzara nuevos precios récord, los mercados se encuentran en una encrucijada de megatendencias de inversión, tales como la demografía, el cambio climático, la electrificación y la digitalización.Estudiar y aprender de nuestro pasado, nos ayudará a tomar mejores decisiones sobre el futuro. Como dijo Benjamin Franklin: «Una inversión en conocimiento produce el mejor interés».De Tulipanes a Bitcoin...

Una serie de atroces asesinatos tiene conmocionada a toda Finlandia; los cuerpos aparecen con los ojos arrancados y una letra grabada en el estómago...El comisario Harald se enfrenta al caso más difícil de su carrera: en un apacible paraje de la ciudad de Forshälla, en Finlandia, ha sido hallado el cadáver de una mujer joven, sin ojos y con una «A» grabada en el estómago. A este cadáver le siguen otros dos que presentan mutilaciones similares.El veterano po...

Dynamite is highly explosive. This is because it's a chemical reaction waiting to happen. Chemical reactions happens all the time - even inside us! Reactants change to make new products. Explore physical and chemical properties of the substances that surround us in this explosive physical science book. From decomposition to acid-base reactions, fifth-grade readers will learn about six types of chemical reactions; activation energy and hopping electrons; reactivity, catalysts, and inhibitor...

If you've worn headphones, watched TV, worked on a computer, or ridden in a car, then you have experienced the power of electromagnetism. Learn all about electricity, magnetism, the link between these forces: electromagnetism, and how these forces impact our lives. Teach third-grade students about atoms, currents, circuits, magnetism, and more with the colorful images and fun facts in this high-interest informational text. Featuring a hands-on "Think Like a Scientist" lab activity that is ...

The 20th century saw many new inventions. Changes came fast and made life easier. Cars, planes, TVs, and cell phones were all invented in the 1900s. What other important things were invented during this time? From electricity to emoji, this Spanish nonfiction book will keep students engaged in reading as they build their literacy, vocabulary, and comprehension skills. Important text features include a glossary, index, and table of contents. The Reader’s Guide and culminating activity requi...

Sound waves are all around us creating a multitude of different frequencies. Some we can hear, and some we cannot hear. Discover the ways in which animals, insects, and birds communicate through sound as well as how sound is beneficial for other uses -- even if we can't hear it! High-interest, informational text paired with vibrant images and photos, intriguing facts, and a helpful glossary and index will keep readers engaged from cover to cover. A "Think Like a Scientist" activity that su...

Light heats our skin, helps us see in the dark, and even helps cure cancer. Light is also used for many things that we may not know about. Learn how light is formed, how it helps us every day, and much more by diving into the pages of this engaging book. High-interest text and vibrant images and photographs fill the pages of this book to make learning about light and its effects fun and interesting. A "Think Like a Scientist" lab activity that supports STEM instruction is included at the e...