What is soil? Where does soil come from? What are the different kinds of soil? How do plants and animals use soil? How do people use soil? What do we use soil for? Case study : The Afsluitdijk, The Netherlands Why is soil important to scientists? How does soil move around? Case study : The Canterbury Plains, New Zealand How can soil be damaged? How do farmers take care of the soil? How does soil affect the way we live? Case study : The leaning tower of Pisa, Italy Case study : The American dust bowl Will soil ever run out?
