Como no meter la pata! / How Not to Screw Up!

When Eco the bear realizes that his friends the bees are missing, he decides to go look for them. His journey takes him around the world where he meets 11 different characters attempting to solve some of the world's greatest problems—air and water pollution, consumerism, extinction, deforestation, global warming, hunger, lack of education, poverty, and war. Each chapter focuses on one world problem and includes activities for children to learn about the social and ecological issues involved with each. Cuando Eco el osito se da cuenta de que sus amigos las abejas han desaparecido, decide ir...

¡Embárcate en una aventura extraordinaria con Roblox! No importa si eres un novato o un experto robloxiano: esta guía es la compañera perfecta para triunfar en todas tus expediciones, tanto si tienes que escapar de una prisión de alta seguridad como evitar una fusión nuclear o luchar contra temibles bestias. Aquí encontrarás todo tipo de información, consejos y trucos, y hasta entrevistas con los creadores de los juegos.

Presenta varios experimentos en cronometría. Para estudiantes de primaria (grados 4-6) y de secundaria (grados 7-9).

Lara Finch lives a lie. Everyone thinks she is happily married to the faithful Sam. She is actually super bored and misses working. Behind Sam's back, she takes a job in London. Twice a week she takes the sleeper train, where she meets Ellen and Guy. One Friday, Lara disappears from the train without a trace. Her friend Iris does not believe the official story she is told about the disappearance and decides to start her own investigation. Iris cannot believe what she finds out.

Introduces the concept of heat, how it's created, how it affects materials around it, and how heat is used.