How Long Did I Sleep?

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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.

How Long Did I Sleep? Reviews | Toppsta

9780749649722

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Series

This is Book 12 in the How What Why ? Series. See all How What Why ? books here.

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About Stewart Ross

Stewart Ross is a popular, prize-winning children's author. He has written over one hundred books for children, including many on 20th century history. His works have been translated into more than a dozen languages. Stewart taught history, english and politics for ten years to children of all ages.

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