How What Why:How Long Did I Sleep
by J Pipe (9780749649722)

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.

USD $35.11

 Out Of Print - No Stock