¿Por qué hibernan los animales? (Why Animals Hibernate)

The rock cycle has been taking place for millions of years. However, geologists have only known about this phenomenon for about 300 years. Young terrestrial explorers are introduced to different types of rocks, where in the cycle these rocks fit, and where in Earth's layers each step takes place. Fact boxes provide readers with fun additional information. A diagram helps readers make sense of the new information they're learning.

Diamonds and salt are both minerals, but diamonds are more rare than salt. Curious readers will learn what physical and chemical conditions must be present for minerals to form. They'll discover how minerals are identified and how they are used in daily life. Informative and interesting text presents readers with this science content in a fun way. A graphic organizer shows how different minerals are identified and fact boxes provide readers with exciting supplementary information.

Ciencia para niños es sobre todo un libro divertido que interactúa constantemente con el lector y lo sumerge en las maravillas de la ciencia. Su principal objetivo es acercar la ciencia a los niños a través de un viaje por la ciencia y la tecnología. Se trata de un viaje en el tiempo, desde la actualidad hasta la antigüedad y, a su vez, por diferentes rincones de la tierra y por la inmensidad del universo. Disponible en catalán, para comprarlo haz clic aquí.

Spanish English Bilingual children's book. Perfect for kids studying English or Spanish as their second language. This children's story has a message for children and parents alike, teaching kids compassion and creativity, while reminding parents the importance of quality time with their children.

This compare-and-contrast text explains the technology we seldom feel we can go without; the phone, computer, and camera. Readers learn the difference between old and new versions of each. New vocabulary such as 'stationary' and 'portable' are introduced. A picture-word glossary is included.

"Dino" Don Lessem brings readers face-to-face with various dinosaur species, detailing their habitats, way of life and how they became extinct. An acclaimed dinosaur expert, Don Lessem has written more than 30 children's books, writes a popular dinosaur column in Highlights magazine, and was an adviser for the film Jurassic Park. Take a trip through dinosaur time to meet these deadly dinosaurs face-to-face: The Variraptor had pointy teeth with grooves like steak knives to saw through meat! The Draeomaeosaurus was the first raptor ever discovered. It had a very large brain! The Microraptor was ...