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    Lawrence Hall of Science
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    Learners cut and fold a paper helicopter from the template in this PDF. They practice twirling the helicopter and observe what happens as they modify their tries. The modifications can include...

    1 cent - $1 per student Ages 4 - 14 10 to 30 minutes
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    Lawrence Hall of Science
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    Learners trace, cut out and fly a boomerang, outdoors or in a large indoor space. Boomerangs are believed to have originated among the Aborigines of Australia, so this activity could be used in...

    1 cent - $1 per student Ages 4 - 14 10 to 30 minutes

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