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In this activity, learners investigate how geometry plays a role in perspective.

1 cent - $1 per group Ages 8 - 18 45 to 60 minutes
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This activity is designed to accompany the PBS documentary about African-American chemist "Percy Julian: Forgotten Genius." Learners look through two cups with small holes in them to simulate what it'

1 cent - $1 per group Ages 6 - adult 5 to 10 minutes