The following books and websites contain additional information, activities, and enrichment options.
- Crumbling Earth: Erosion and Landslides
- Mary Colson, Raintree, 2004
- Cherie Winner, Carolrhoda, 1999
- Ann O. Squire, Children's Press, 2002
- Alice K. Flanagan, Compass Point, 2001
- Volcanoes and Earthquakes
- Susanna Van Rose, DK, 2004