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In this activity (located on page 2 of PDF), learners explore alternative uses of a simple paper cup, dubbed a "mystery item." Learners act as detectives and explore the properties and functions of th

1 cent - $1 per student Ages 4 - 11 10 to 30 minutes
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Learners make their own simple slide rules out of paper and learn how they work.

1 cent - $1 per group Ages 8 - adult 10 to 30 minutes