Cambios que Suceden en la Naturaleza

All life on Earth depends on the water cycle! The Water Cycle is a fascinating book that introduces children to this important cycle using a clear, step-by step approach. Kids will learn about how different processes, including evaporation, condensation, precipitation, and run-off, work together to move water from the ground to the air and then back down again. Full-color diagrams and beautiful images accompany clear text to help make the water cycle come alive for kids as they learn • How plants contribute to the water cycle through transpiration • How water trapped underground for thousands of years remains part of the water cycle • The importance of water to all living things • Ways in which people can help protect Earth's water and keep it clean

Children will be fascinated by the different ways in which animals grow and change from the time they are embryos to the time they are adults. This amazing book explains what a life cycle is in a clear, simple way. Detailed diagrams and colorful photographs help explain the life cycles of many different kinds of animals, including mammals, birds, snakes, lizards, fish, frogs, insects, spiders, and worms. Concepts introduced are • classification of the various animals (mammal, reptile, amphibian, etc.) • the difference between hatching and being born • migration, nursing, molting, • two kinds of metamorphosis • life spans.

Changing Weather: Storms is an exciting book that introduces kids to the kinds of storms that take place each year. Large, full-color images of storms such as hurricanes, tornadoes, thunderstorms, and blizzards accompany clear explanations of how different storms develop and the kinds of effects these storms have on the lives of people and animals. Kids will also learn about storm safety and ways they can help their families be prepared. Changing Weather: Storms provides detailed information on • Three important elements of most storms: clouds, precipitation, and wind • The water cycle and its part in the development of storms • The role of updrafts and downdrafts in the creation of thunderstorms and many other storms • The ways in which meteorologists study storms and how their knowledge can help save lives.