Louis Pasteur

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

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

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.

Se trata de una carpeta de anillas con 6 cuadernillos divididos por separadores. 1) Para empezar. 2) Unidades didácticas 1, 2 y 3. 3) Unidades didácticas 4, 5 y 6. 4) Unidades didácticas 7, 8 y 9. 5) Cuadernillo de evaluación. 6) Actividades complementarias.

¿Qué es un “experimento mental”? Como nos dice Martin Cohen, «al igual que los que se realizan en el laboratorio, son pruebas que se conciben con el fin de explorar (o de destruir) las intuiciones que tenemos sobre el funcionamiento del mundo». Este libro imprescindible para todos los amantes del saber, desde los científicos a los filósofos, recopila los 26 experimentos de esta clase más interesantes realizados a lo largo de la historia. Y no es poca sorpresa, para empezar, enterarnos de que toda la ciencia moderna se sustenta sobre los modestos cimientos que establecieron media...

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 debugging. 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 debugging works in the real world. In this book, readers will find out why a magnet isn't sticking to a certain surface. This nonfiction title is paired with...

A 2014 report by the US Department of Education found that 22 percent of students ages twelve to eighteen had experienced bullying. This cogent narrative provides readers with supportive methods to help a friend who is being bullied and to promote a bully-free learning environment at school. Physical, social, psychological, and verbal bullying are examined, as well as cyberbulling. Readers discover the consequences of bullying both as a target and as a bystander. They also consider ways to intervene in a bullying situation, how to seek adult help, and how to be empowered and recover from...