It’s a Dragonfly! / ¡Es una libélula!

Todos sabemos un par de cosas sobre los dinosaurios como sus nombres, sus formas y que algunos tenían plumas y otros no, pero ¿cómo se descubrió todo esto? ¿Quiénes fueron los primeros interesados en los enormes esqueletos que aparecían de la nada y que tal vez inspiraron las leyendas sobre terribles dragones que secuestraban princesas? O ¿dónde se inició la primer gran exposición de dinosaurios en el mundo? Esta aventura gráfica es un recorrido por la historia, no tanto de los dinosaurios, sino de los padres de la paleontología. We all know a thing or two about dinosaurs, a...

There is a contest at a school to design a new playground. The students use blocks to build their models. As they build, they use three-dimensional shapes. Some students build a train out of blocks for the younger students to play on. Can you guess which three-dimensional shape they use for the train's wheels? Read to find out which design wins.

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 investigate what's wrong with a circuit and find out how to fix the problem. This nonfiction book is ...

Wind Power: A waving flag, blowing leaves, a kite soaring through the skyall are moved by wind power. Wind is also our fast-growing source of energy. Find out how wind forms and the different ways we may use it in the future.