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

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.

When rocks change because of environmental conditions, the new rocks are called metamorphic rocks. A rock's chemical or physical makeup may change because of conditions such as temperature, stress, or pressure. Your readers will learn fascinating facts including where metamorphic rocks are most commonly found, the different types of metamorphism, and how metamorphic rocks are identified. Full-color photographs depict these rocks in nature. A helpful graphic organizer shows how these fascinating rocks form.

Think there's just one fairy tale with an overworked girl and wicked stepsisters? Think again! Cultures all around the world have their own Cinderella stories. Visit Canada, China, Egypt, and France, and find out whose "glass slippers" are made of red silk, and whose "fairy godmother" is a fish. Fully translated Spanish text.

The Earth is made up of shapes. The shapes make up landforms. Find out about all of Earth’s landforms. Paired to the fiction title A Long Car Ride.

El libro pretende contar un poco de la década de los cuarenta, como Trece Rosas y el fusilamiento de Quiñones entre otros hechos y siempre bajo la atracción del torbellino europeo y de lo peligro de invasión por parte de Hitler o de los Aliados y la victoria de Franco en La Guerra Civil.

Description Packed with action and full of the vehicles kids love most, Big Movers is tons of fun! Young readers are there as a front loader scoops piles of gravel for a new roadway, a wrecking ball demolishes and old building, and more. A chunky, movable piece on each vehicle makes reading this book an interactive adventure.