Louis Pasteur

Esta excelente biografía del célebre químico francés está dirigida especialmente a los lectores jóvenes y presenta los logros más significativos de este importante científico. Él realizó investigaciones decisivas sobre la fermentación y las bacterias, sostuvo que los gérmenes eran los responsables de las infecciones y desarrolló el proceso de la pasteurización, de enorme importancia para la economía y la salud pública. Además, descubrió las vacunas contra el ántrax y la rabia. También fue el primer director del Instituto Pasteur, fundado en 1888 para investigar los virus y ...

A simple biography of the naturalist who founded the Sierra Club and was influential in establishing the national park system.

The Uses Of Wind Energy Is The Topic Of This Book. Explains The Positive And Negative Impact This Form Of Energy Can Have On Our World.

Memorial Day is an important and special holiday, but some people forget why we celebrate it. On the last Monday of May each year, people around the country gather and remember the men and women who've died while serving in the U.S. military. This educational book encourages readers to reflect on the sacrifices military personnel make to protect our country. This book also touches upon the more lighthearted side of the holiday and the different types of celebrations that people have each year. Featuring full-color photographs and accessible text, this book is sure to engage beginning readers.

What makes a family anyway? Featuring Waldorf-style illustrations and depictions of families of all shapes, sizes and colors, this book gets kids talking about their own families while opening their eyes to the fact that even though families don't always look the same, they all share one special thing-love. This is the Spanish language edition of the children's book. Que hace a una familia de todos modos? Con ilustraciones y representaciones de las familias de todas las formas, tamanos y colores de estilo Waldorf, este libro hace que los ninos a hablar de sus propias familias al abrir sus...

It's Ms. Frizzle's birthday and the class tries to bake a cake but winds up inside it, learning about mixtures and reactions that occur when ingredients are put together."

"In brief poems, the animals who live in and around Iguazú Falls in South America introduce themselves and the rain forest world they inhabit. K. PW. "