Kolmogórov

What does swimming in a pool, drinking through a straw, breathing in air, and circulating blood all have in common? They all require a form of air or water pressure! Readers will discover the variety of ways that air and water pressure make an impact on our lives and the things in them. This fact-filled, Spanish-translated nonfiction title includes real-life examples and basic experiments to aid in the development of understanding physic and scientific concepts. Readers will be introduced to and learn about Archimedes Principle, atmospheric pressure, vacuums, water density, and hydraulics...

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...

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.

Consolidates the Student's Book lessons with targeted practice, unit by unit Additional practice of reading, writing, speaking, listening and use of English skills Extensive grammar and vocabulary practice Complete practice exam in Unit 10 Designed for independent study at home and practice in class Audio for listening lessons available on the Student's App