El máximo secreto de la naturaleza (Top-Secret Nature)

In some parts of the world, Earth's four seasons are very different. Some places don't experience much of a change in seasons at all. This book explains the science behind the changing of the seasons. The features of each season are explained in the context of the Earth's position relative to the sun. Age-appropriate text, full-color photographs, and infographics demystify this complex topic. Readers will learn about our yearly journey around the sun.

Tiny seeds grow into many different plants, both large and small. With this informative book, readers learn the segments of the sprouting process. They'll learn the parts of a seed and what role each part plays in sprouting. Photographs show readers full-color examples of these parts and steps, allowing them to make connections with the age-appropriate text. This book will spark readers' interest in plant science.

When winter hits, many people in colder climates spend most of their time indoors. But what do wild animals do? Some animals spend winters hibernating. Beginning readers will learn what hibernation is, why some animals hibernate and others don't, and how hibernating animals prepare for their long sleep. Full-color photographs grab readers' attention and allow them to draw connections to the narrative. Readers will love learning about this mysterious, restful time in some animals' lives.

Chickens and many other animals begin their lives inside an egg. How eggs hatch is an intriguing and complex process, and it can seem like a mystery. Young readers learn the science behind egg development, the parts of a chicken egg, and how chicks break out of their shells. Full-color photographs and age-appropriate language allow readers to better understand one of life's most intricate processes.

Each morning, the sun rises in the east. Each night, the sun sets in the west. Enchanted readers will learn that the sun looks like it's moving because of the rotation of Earth on its axis. Bright photographs grab readers' attention, while infographics help explain this complex topic. Readers will be able to visualize how Earth's position relative to the sun affects whether it's day or night.

Rainy days might make some people sad, and while we might not want to get caught in a downpour, our Earth needs rain. Rain is responsible for keeping our plants healthy, giving us drinking water, and giving us a way to cool off when it's hot. Your readers will learn each step of the water cycle, why it is one of Earth's most important processes, and the role that rain plays in it. Photographs and a simple diagram depict the water cycle in action. Reading this book will give young learners a new appreciation for rainy days.