Further Reading

FURTHER READING J. Raloff. “Germy with a chance of hail.” Science News. June 18, 2011. Vol. 179. No. 3, p. 12. At this NASA website, learn more about how hail and other forms of precipitation form. S. Ornes. “Ash blast.” Science News for Kids. May 8, 2011. S. Ornes. “Floor of Gulf got slimed.” Science News for Kids. April 7, 2011.