Enigmas de la ciencia

Introduce students to world trade with this nonfiction Spanish book. Young readers will learn about the various services and goods that countries around the world provide, the different types of currency, and the difference between wants and needs. With images that support the text, students will be fully engaged and better understand the content.

¡Hola, hijo de Newton! ¿Así que quieres crear una máquina para teletransportarte e un segundo a Hawái? ¿Y a veces piensas hacer un pequeño Big Bang para tener un universo a tu disposición? ¿O incluso en ocasiones viajar cinco minutos al pasado para seguir durmiendo y no tener que despertar para ir a clase? De la mano de Javier Santaolalla, doctor en física, investigador del CERN y Youtuber, descubrirás cómo lograrlo. En este libro encontrarás un montón de información que hará que tu cerebro explote. Así que ¡ve con cuidado! ¿Listo para que te estalle el cerebro?

For thousands of years, militaries around the world were limited to male soldiers. However, throughout history, brave women have stepped out of the background and onto the battlefield. This biographical text covers the important women who’ve broken ground in the military. Famous historical figures such as Joan of Arc, Clara Barton, and Florence Nightingale are covered in depth, while the stories of modern-day heroes are presented to show how women are still affecting change on the front lines. A comprehensive timeline, fact boxes, and historical and modern images complete this...

3 million years ago, men built the first stone tools for hunting. 2 million years ago, men walked in a completely upright position and had already discovered fire. 1 million years ago, men organized themselves in groups... Okay, okay, but what about the women? Where were the women in the meantime?