How Do You Measure Time?

Provides an overview of the design, uses, weapons, and equipment of U.S. Navy submarines. Written in English and Spanish.

¡Vamos criaturita, vamos! offers a simple introduction in Spanish to some of nature's most intriguing creatures, from the earthworm in the ground to the bee buzzing in a flower; from the spider in its web to the firefly lighting up the night sky.

Cuando David Houlding descubre lo difícil y dura que se está convirtiendo su juventud, sufre un síndrome real llamado Hikikomori, que lo aísla por completo de la que él considera una sociedad plástica, y pasa cuatro años encerrado en su habitación. Esto provoca una depresión, desencadenada a su vez por los actos de algunas personas que son muy importantes en su vida. Quizá nuestra realidad no sea tan diferente a la de él.

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 conditionals. 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 conditionals work in the real world. In this book, readers will learn what laws are and what happens if you break them. This nonfiction book is paired with the ...

In graphic novel format, follows the adventures of Max Axiom as he explains the science behind light.