Millions and billions of years ago
Subtitle: dating our earth and its life
By: by Norman F. Smith.
Series: A Venture book
Publisher: F. Watts
Published: 1993
Place of publication: New York
Language: eng
Number of pages: 127
Subjects: Geochronometry -- Juvenile literature.; Earth -- Age.; Geochronometry.; Earth -- Age -- Juvenile literature.
Description: Discusses the processes by which scientists determine the age of their specimens, such as counting the number of tree rings, reading the strata, and using chemical analyses and the carbon-14 test.  Also looks at recent findings that may tell us how old the universe is.
Notes: Includes bibliographical references (p. 122-123) and index.