Apuntes de matemáticas

What has a head, two tails, and shoots across the sky? A comet. Coming from the far edges of the solar system, most comets travel around the Sun, while meteors appear as flashing streaks of light in the night sky. Explore these amazing celestial wonders as they zip through space! This book looks at the difference between comets and meteors and their effects on Earth. The physical characteristics of each are identified in detail. This book won’t come crashing down! It’s filled with fun facts that give additional information on this exciting science topic. This book allows students to use...

Earth is constantly changing. Wind, water, and even humans change Earth’s surface. The land is broken down and worn away by erosion. Introduce students to weathering and erosion with this Spanish science reader that features easy-to-read text. Nonfiction text features include a glossary, index, and detailed images to facilitate close reading and help students connect back to the text. Aligned to state and national standards, the book also includes a fun and engaging science experiment to develop critical thinking and help students practice what they have learned.

Creo que todo el arte se debe involucrar con los tiempos que le ha tocado vivir. Tanto el pintor, como el escritor, así como la música, son pálpitos. Asi lo creo y así lo he vivido escribiento este libro, lo que me hace pensar que los poetas somos los tímidos más atrevidos, capaces de ponerle cascabeles al viento.

Esta colección reúne libros únicos, con historias divertidas y educativas. En este libro se muestra, por la visión de los animales, qué el hombre hace con la naturaleza. Un poderoso mensaje que se puede ver a través de hermosas páginas ilustradas.