En el libro se explica qué sostiene y protege a los cuerpos de los animales y los humanos.
La ciencia nos ayuda a entender el mundo que nos rodea, descubre el mundo físico en este libro con el tema de la electricidad y la luz.
Con gráficas e ilustraciones muy claras, se explica el ciclo del agua y la importancia de ésta en la vida del planeta Tierra.
Young readers focus on the importance and issues of clean water.
La ciencia nos ayuda a entender el mundo que nos rodea, descubre el mundo físico en este libro con el tema del ciclo del agua.
En este libro se explica lo que es el sonido, cómo funciona y las características del mismo desde el punto de vista del hombre y de los animales.
Young readers will discover what they can do to make greener choices as they grow up.
En el libro se explica por qué los hombres debemos cuidar la tierra.
Learn how structures are being built to withstand nature's destructive forces.
Aprende en forma divertida sobre las ciencias de la vida, los ecosistemas y los organismos que los conforman.
Los animales de distintas especies usan el camuflaje para esconderse o para imitar a otros animales; para cazar o para evitar ser la presa de otro animal.
En este libro se resume brevemente el ciclo de vida del girasol con imágenes y datos interesantes.
Young readers discover what harms plant and animal habitats, and what people can do to help.
La ciencia nos ayuda a entender el mundo que nos rodea, descubre el mundo natural con el tema de cómo viven y crecen las plantas.
This book describes what flippers look like, and how some animals use flippers to swim or crawl. It also discusses the different animals that have flippers.
En este libro aprenderás en forma interesante y divertida sobre los procesos científicos relacionados con la materia que forma mezclas y disoluciones.
Weather changes from day to day and season to season. But what exactly is weather and how is it created? Readers will discover the answers to these questions and many other weather wonders. Bright, full-color photographs, inviting text, and engaging questions introduce readers to the different types of weather in our world and how it affects our lives.
Children see themselves as part of a non-living world of houses, schools and televisions. This intriguing new book explains what a living thing is so that children can make the connection between themselves and other living things, including plants, animals, and insects.
What are Forests? brings to life the wondrously complex and diverse ecosystems found in forests around the world. Intricate relationships and concepts are explained in a simple way with the help of beautiful color photographs. Children will be fascinated by the earth's many types of forests, the elements that make up a forest ecosystem, the wide range of plant and animal species that live in different forests, and the importance of forests to the rest of the Earth.
The constantly changing ecosystems of salt and freshwater wetlands support an amazing variety of wildlife species. Children will be intrigued by the fascinating animals that depend on wetlands, such as alligators and hippopotamuses, and the plants that grow there. This engaging book investigates swamps, salt marshes, and flood plains, the many plants and animals that live in wetlands, and the threats to these ecosystems and their wildlife.
Biomes are the major communities of plants and animals in our world. Children will love learning about life in everything from the chilly arctic tundra biome to dry, grassy savannahs.
Starting with the sun, food chains link together plants and animals in various ecosystems to help them survive. Kids will be fascinated by these chains and their own links to the natural world.
From whales and deer to butterflies and eels, animals migrate to breed, feed, stay warm, find water, and even sleep! Animals follow paths passed on for generations ensuring the survival of their species. Discover the amazing treks of the Arctic tern, the salmon, and the Canada goose.
In the animal world, the easiest way to avoid being eaten is to avoid being seen. What are Camouflage and Mimicry? examines animals that use unique colorization and patterns to avoid predatorsor to sneak up on prey! Some are virtually impossible to see.
