Further Reading

S. Perkins. “Teens take home science gold.” Science News for Kids. May 17, 2013.

J. Raloff. “Good vibrations: A greener way to pasteurize milk.” Science News blog. July 21, 2010.

J. Raloff. “Cow power.” Science News blog. Nov. 15, 2006.

E. Sohn. “Got milk? How?Science News for Kids. Jan. 19, 2010.