Earth is made of different things-gases, rocks, soil, and water. A gas is something that can change shape and size. Gases helps beginning readers understand this basic element by looking at examples such as air and steam; the book also discusses how gases help protect the Earth.

Earth is made of different things-gases, rocks, soil, and water. Soil is the top layer of the ground. Made up of tiny rocks and small pieces of plants and animals, soil helps plants grow and provides a home to insects and worms.

A basic introduction to what you see on a rainy day.

A basic intrduction to what you see on a sunny day.

This book is a very basic introduction to globes and what they are used for.

Desde los lagos hasta las nubes, hasta la lluvia que cae de nuevo a la Tierra, descubra cmo el agua cambia a travs de diversos procesos para formar el ciclo del agua. From lakes, to clouds, to rain that falls back to Earthdiscover how water changes through various processes to form the water cycle.