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    National Optical Astronomy Observatory
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    This is a classic exercise for visualizing the scale of the Solar System. Both the relative size and spacing of the planets are demonstrated in this outdoor exercise, using a mere peppercorn to...

    1 cent - $1 per group Ages 6 - adult 45 to 60 minutes
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    The Exploratorium
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    This is an activity about friction as well as kinetic and potential energy. Learners will be able differentiate between hard-boiled and raw eggs while they marvel at how one of the eggs seems to...

    1 cent - $1 per student Ages 11 - 18 10 to 30 minutes
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    National Health Museum
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    In this activity, learners are challenged to eat some candy as a cell would need to as well as to think about some of the problems that arise when a cell ingests food. By solving this problem,...

    1 cent - $1 per group Ages 14 - 18 30 to 45 minutes

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    • Oregon Museum of Science and Industry (remove)
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