soil ecology

Text and color illustrations break downthe composition of soil, from its nutrients, minerals, and organisms to climate factors needed to keep plants healthy.

Introduces the science of soil, explaining what soil is and looking at different types of soil.

Discusses soil, what lives in it, what it is made of, and how to keep it healthy.

Brief text explores how soil is formed, its layers, and its importance as a natural resource that living things need to survive.

Describes types of soils, how soil is made and how it is used.

Simple nonfiction text and full-color photographs present animals and plants found in soil.

"Teaches readers about layers and types of of soil, dirt, and earth underground"--Provided by publisher.

Looks at the environment and organisms that exist under stones.

Discusses the nature, uses, and importance of soil and the many forms of life that it supports.

"People need land. They need it to grow food. They build their homes on land. Using land, however, can lead to erosion and the destruction of natural habitats"--P. [4] of cover.