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During the XVII and XVIII centuries, there were great thinkers who risked their freedom and their lives over their revolutionary ideas. Take a look at the philosophers that were the pillars of both modern thinking and science: Galileo, Hobbes, Newton, and many more. They dared to question the norm.

¡Ñee! ¡Hola, gente! ¡Soy Pacheco Cara Floja! Y en este nuevo libro quiero contaros cómo salvé la Tierra de una gran amenaza intergaláctica... Todo empezó cuando maté a aquel mosquito molesto de un golpe de remo. Bueno, el caso es que no era un mosquito, era un ser de otro planeta... ¡Qué demonios! ¿Cómo iba yo a saber que por haber acabado con ese bicho fastidioso una panda de alienígenas se iban a enfadar tanto? La única forma de salvar al planeta Tierra de la destrucción es viajar a Proteus y donar una muestra de mi ADN. Pero... ¿qué es lo que oculta Kran, el temible...

Twirling tornadoes, horrific hurricanes, deadly dust storms, and blowing blizzards. Depending where you live, you may have experienced one of these extreme storms. Although being caught in extreme weather can be dangerous, being prepared can save your life. This nonfiction Spanish book introduces students to extreme weather, and teaches them important scientific concepts and vocabulary. The colorful images, diagrams, sidebars, and text features will keep students connected to the text. Aligned to state and national standards, the fun lab activity provides a real-world learning experience that ...

Journey through Earth's wet and wild rainforests with vivid photographs of the most unique plants and animals in the world's most untouched forests. Readers are introduced to the importance of protecting the rainforests and vocabulary related to the rainforest and its amazing inhabitants.