Lo que los fósiles nos enseñan sobre la Tierra (Investigating Fossils)

Advances in science have changed our world, all thanks to the scientists behind important discoveries. Some of the most important discoveries have come from female scientists, who were as unique for their work as they were for being trailblazers in a male-dominated industry. This text offers a biographical treatment of such important scientists as Marie Curie, Rachel Carson, and Jane Goodall, as well as others who have made it possible for women of the future to have a career in science. Age-appropriate text, fact boxes, historical and modern images, and a comprehensive timeline complete the...

Students will gain a deeper understanding of the Cold War by delving into major social studies topics in this project-based examination. The volume presents a series of broad questions touching on major themes in the social studies curriculum. Each question is accompanied by several paragraphs examining that question in the context of the Cold War, as well as a detailed project that prompts readers to think critically and present their findings or opinions in a particular format, such as a poster with side-by-side comparisons, a persuasive essay, or a class presentation.

Cuidar a sus niños siempre ha sido la mayor prioridad de Woody, pero cuando el juguete que creó Bonnie cobra vida las cosas se ponen un poco extrañas. Durante un viaje familiar, Woody, Buzz y los otros juguetes tienen que convencer al nuevo juguete, Forky, de que es tan importante para Bonnie como el resto. A lo largo del camino, nuevos y viejos amigos ayudan a Woody a descubrir lo enorme que puede ser el mundo una vez que abres tu corazón y tu mente.

AMARILLO, ROJO, VERDE Y AZUL: ¡EL MUNDO ESTÁ LLENO DE COLORES! DESCÚBRELOS EN LAS PÁGINAS DE ESTE LIBRO Y APRENDE DE FORMA DIVERTIDA CON LOS PERSONAJES DE DISNEY BABY.

Why do some things heat up quickly while others don't? How can heat cause matter to change form from solid to liquid to gas and back again? Heat cannot be seen, but it can easily be felt. Looking at different objects' molecular makeup, this book describes the fundamentals of heat and furthers understanding through a series of easy experiments.