Conservación de la masa (Conservation of Mass)

Light can travel faster than anything else in the universe. But what exactly is light, and where does it come from? This nonfiction Spanish book teaches students all about light, and introduces them to important scientific concepts and vocabulary terms like infrared, ultraviolet, photos, and visible spectrum. The intriguing images, detailed diagrams, and stimulating sidebars will keep students connected to the text. The fun lab activity provides a real-world learning experience that supports STEM instruction. Aligned to state and national standards, the leveled text supports differentiation....

Discover How Katydids Got Their Name, That There Are Hundreds Of Kinds With Different Colors And Body Length, What They Eat, And How They Reproduce.

El Nether y el Fin son dimensiones muy peligrosas. Si quieres explorarlas y regresar con vida al mundo tradicional tendr�s que mejorar tu juego. Esta gu�a oficial de Minecraft te ense�ar� a abrirte camino en esas tierras inh�spitas, a luchar contra sus criaturas y a buscar bloques y objetos excepcionales. Con informaci�n privilegiada por parte de los expertos de Mojang, �sta es la gu�a definitiva para sobrevivir en el Nether y el Fin. ENGLISH DESCRIPTION Survival is difficult in the perilous Nether and End dimensions, and you'll need to up your game if you want to make it back ...

“Dino” Don Lessem brings readers face-to-face with various dinosaur species, detailing their habitats, way of life and how they became extinct. An acclaimed dinosaur expert, Don Lessem has written more than 30 children’s books, writes a popular dinosaur column in Highlights magazine, and was an adviser for Jurassic Park. Take a trip through dinosaur time to meet these small dinosaurs face-to-face: Little Lesothosaurus was the length of a house cat! Epidendrosaurus could climb into trees like a squirrel! Liaoceratops had body armor and horns-and was only the size of a collie dog! Plus,...

Computer science is all around us, at school, at home, and in the community. Anyone can learn computer science, even at the elementary school level. This book delves into essential computer science concepts using age-appropriate language and colorful images. The computer science topic is paired with an age-appropriate curricular topic to deepen readers' learning experience. The instructional guide on the inside front and back covers provides: Vocabulary, Background knowledge, Text-dependent questions, Whole class activities, and Independent activities.