Tuesday, November 30, 2010

Medium Difficulty


Answer two or more:
What are all the different time periods and how do they relate to each other?
How many weeks, days, hours, minutes and seconds have you been alive?
How do sundials work?
How can I make a sundial?
How can people tell the time by using the sun?
How do people tell when the day is going to start and end?
What is a light year?
Why are there different times in different countries?

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