Rcords del mundo animal / Records of the animal world

Imagine traveling at half the speed of a jet plane without ever leaving the ground! Students will discover the technology that makes such speeds possible, from special tracks and safety precautions to aerodynamically designed trains. What are the limits to the speed of trains? What imposes those limits? Students also will read about the future of passenger train travel, from flying trains to trains that use huge magnets to levitate inches or centimeters off the track. Some trains safely reach speeds of more than 200 mph!

GRADES K–2: Bring Spanish into the classroom! Introduce early elementary students to the topic of sound waves with this science-themed Spanish title. FEATURES: Kids will learn about how we send and recieve sound waves and complete an activity that supports further comprehension. EARLY BILINGUAL LITERACY: Help young learners strengthen their bilingual skills—add the English version of this title into your collection, too. WHY MY PHYSICAL SCIENCE LIBRARY: This collection introduces a variety of science topics while presenting complicated information in easy-to-understand language and...

El koala es un marsupial que, en estado natural, sólo vive en Australia. Igual que las hembras de todos los marsupiales, como el canguro, las hembras de koala poseen una bolsa o marsupio, donde llevan a las crías y donde éstas se alimentan con la leche de las mamas. En este volumen, conocerás su forma de vida y sus costumbres.

Introduce students to the importance of taking care of the Earth and protecting our environment. With this Spanish-translated text, readers will learn how they can help the planet. Engaging, primary source documents and images keep students reading as they build their literacy skills and social studies content knowledge.