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Before there were clocks, people used shadows to tell time. In this outdoor activity, learners will discover how to tell time using only a compass, a pencil, a handy printout, and a sunny day.

$5 - $10 per group Ages 8 - 14 10 to 30 minutes
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This is an activity about prediction. How far can you hop in 5 seconds? Could you make it to the door? Across the room? Everyone lines up and tries it.

free Ages 4 - 11 10 to 30 minutes
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In this activity (on page 12 of the PDF), learners make a sundial (shadow clock) appropriate for their geographic location in the northern hemisphere and use it to tell time.

$1 - $5 per group Ages 8 - 14 1 to 7 days
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In this activity, learners explore how the pendulum has been a reliable way to keep time for centuries.

Over $20 per group Ages 8 - 18 1 to 2 hours
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Build time sense into the schedule by asking learners to predict what can happen in a certain amount of time: We have 20 minutes before outdoor time. What can you get done?

free Ages 6 - 14 10 to 30 minutes