La Proclamacion De Emancipacion / The Emancipation Proclamation

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 ...

Young students will be enthralled with compelling portraits of famous figures who devoted their lives to improving the world. Includes historical photos and illustrations.

Defines levers, explains their functions, and suggests simple experiments to demonstrate how they work.

Follows The Thirteenth Amendment That Freed The Slaves, The End Of The War, And The Death Of President Abraham Lincoln.

Colorful photographs feature children on their way to school, in their classrooms, and following school rules. Young readers will also learn about the jobs of teachers, librarians, and principals. An important section teaches children how to stay healthy inside their school communities.

An introduction to what cowboys do, what their day is like, what they wear, what tools they use, and how people can become a cowboy.

Now in Spanish—What do dogs dream about? Find out the answer to this question and more, with questions covering topics like volcanoes, helicopters and surfers.

Young investigators will discover what happened to their favorite playground equipment in the text, El caso del parque infantil (The Jungle Park Case). By analyzing footprints, fingerprints, and tire tracks, students will understand how useful gathering information and analyzing data are to solving problems. With a glossary, an index, dynamic images, age-appropriate content, and easy-to-read text, students will build their math and reading skills while they are engaged in reading high-interest topics.