Gardner, Robert.
It's about time! Science projects : How long does it take? / Robert Gardner. - Berkeley Heights, N.J. : Enslow Publishers, 2003. - 48 p. : col. ill. ; 24 cm. - Sensational science experiments .
Includes index. Includes glossary.
Includes bibliography.
This book discusses the measurement of time in seconds, minutes, hours, days, weeks, and years and presents experiments on how to measure the times it takes to blink, react to a signal, breathe, and run different distances.
4-8 Medialog, Inc.
0766020126
2002004621
Time.
Science projects.
529
It's about time! Science projects : How long does it take? / Robert Gardner. - Berkeley Heights, N.J. : Enslow Publishers, 2003. - 48 p. : col. ill. ; 24 cm. - Sensational science experiments .
Includes index. Includes glossary.
Includes bibliography.
This book discusses the measurement of time in seconds, minutes, hours, days, weeks, and years and presents experiments on how to measure the times it takes to blink, react to a signal, breathe, and run different distances.
4-8 Medialog, Inc.
0766020126
2002004621
Time.
Science projects.
529