ISBN:

• 9780778754145
• 9780778754015

Description: 32 pages : color illustrations ; 29 cm.

Notes: Includes index.

Contents:

• What is soil?
• All about humus
• Nutrients in soil
• Nutrient cycles
• Water for life
• Fresh air for life
• Weathering rock
• Break it down
• Carried away
• Dumped on the land
• Soil and climate
• Soil takes it's time
• Soil conservation.

LCCN: 2009042780

Control Number: 789638

Series:

• Everybody digs soil
• Everybody digs soil.

Subjects:

• Soil ecology -- Juvenile literature.
• Soils -- Juvenile literature.