What would life be like with no clocks and no calendars? How would you know when to get up in the morning? How would you know when baseball season was about to start? Long, long ago, all people could do was watch the sun and moon and try to figure things out. Eventually, they made simple clocks like sundials. And as time marched on, people came up with more ways to measure it. Today, quartz...
This is an excellent book for allages. My 5 and 7 yr old kids loved it and learned a lot. It sparked their curiosity and led us onto a science experiment about the phases of the moon.
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