Discusses the bones of the human body, how they change with age, important bones, their composition, how they help people to move, their role in the skeletal system, and the importance of taking care of them. Describe los huesos del cuerpo humano, cómo cambian con la edad, los huesos importante, su composición, cómo ayudar a la gente a moverse, su papel en el sistema esquelético, y la importancia de cuidar de ellos.

"Developed by literacy experts for students in kindergarten through grade three, this book introduces minerals to young readers through leveled text and related photos"--Provided by publisher.

"Developed by literacy experts for students in kindergarten through grade three, this book introduces soil to young readers through leveled text and related photos"--Provided by publisher.

"First Science explains introductory physical science concepts about energy through real-world observation and simple scientific diagrams. Intended for students in grades three through six"--Provided by publisher.

Introduces the migration patterns of monarch butterfies, describing the vast distances they cover, why they migrate, and the dangers they face along the way.

A simple introduction to the life cycle and functions of a leaf.

Explains the difference between good fire, which can be used safely for cooking and providing warmth, and bad fire, which can cause burns or destroy property.

Describes tropical rain forests, including where they are located and the various plants and animals that live and interact there.

A simple explanation of what sharks look like, how they hunt, what they eat, and how they are born.