How Long Did I Sleep?
Jim Pipe
Hardcover
(Franklin Watts Ltd, May 22, 2003)
A group of characters introduce basic science questions and answer them using simple, hands-on projects. These fun projects encourage younger children to investigate the world around them, whilst introducing them to fundamental science principles. How Long Did I Sleep Looks at measuring time during the 24 hours of the day, calendars, using the sun to measure time, units of time, and differences between short and long time.