Agujeros negros (Black Holes)

For many years, people believed there were nine planets that orbited the sun. Now we say there are eight. What happened to the ninth planet, Pluto? What are the different planets like? What exactly makes a planet a planet? These are the many intriguing questions answered with this high-interest book, crafted to be accessible for readers of all levels. Young astronomers will be especially fascinated by the stunning photographs and the "Make the Grade" fact boxes.

Antes de que Kamala Harris se convirtiera en abogada y senadora de Estados Unidos, fue una niña a la que le encantaban los superhéroes. Y cuando los buscaba a su alrededor, ¡se sorprendía al encontrarlos en todas partes! Los había en su familia, entre sus amigos, incluso en su misma calle; los superhéroes estaban dondequiera que ella miraba. Y esos superhéroes le enseñaron que todo lo que se necesita para ser un superhéroe es dar lo mejor de ti. En esta motivadora y expresiva memoria, que va directa al corazón de los niños, Kamala Harris lleva a los lectores a través de su vida, y ...

Practice finding patterns while learning about music around the world! Many different musical instruments use patterns to make different sounds into rhythms, such as tambourines, drums, and flutes. This charming, Spanish-translated text uses vibrant images, engaging practice questions, and helpful mathematical diagrams to help young readers understand patterns and early STEM themes. Children will have fun discovering patterns that these instruments make and learning how to make patterns of their own with homemade instruments! This 6-Pack includes six copies of this title and a lesson plan.

Lleve a sus hijos a disfrutar una aventura de primavera! "El 21 de marzo de la primavera es el primer dIa! Y muchas cosas maravillosas sucederAn este dIa" En este libro, Terry Treetop estA a punto de jugar con un pequeNo oso que se ha metido en el jardIn, justo cuando la mamA del osito lo llama para que regrese al bosque. Pero algo sale mal y el pequeNo oso estA en peligro. PodrA Terry salvar al pequeNo oso? DespuEs de todo, podrAn jugar juntos? Este eBook para lectores principiantes, el quinto en la exitosa serie Terry Treetop, le enseNarA a sus hijos acerca de las seNales de la primavera y...

Computer science is all around us, at school, at home, and in the community. This book gives readers the essential tools they need to understand the computer science concept of algorithms and procedures. Brilliant color photographs and accessible text will engage readers and allow them to connect deeply with the concept. The computer science topic is paired with an age-appropriate curricular topic to deepen readers' learning experience and show how algorithms and procedures work in the real world. In this book, readers learn how to use instructions to build their own drone. This nonfiction...