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    COSI
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    Everybody loves boomerangs! In this activity about force and motion, the learners will experiment with boomerangs and explore how they work. This is a great activity to get learners up and moving.

    $1 - $5 per student Ages 4 - 8 10 to 30 minutes
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    Lawrence Hall of Science
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    In this collecting/comparing activity, learners work with samples of sand from different places like a lakefront, river, or ocean beach. Learners note similarities and differences among sand...

    $1 - $5 per group Ages 4 - 14 30 to 45 minutes
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    Science Museum of Minnesota
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    In this activity, learners make acid/base indicator paper, place the indicator paper on an anthill, disturb a bunch of ants, and then observe what happens! Some stinging insects spray formic acid...

    $1 - $5 per group Ages 6 - 11 45 to 60 minutes
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    NASA
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    This activity (on pages 10-12 of the PDF) encourages learners to consider what makes living things different from non-living things. Learners discuss a pre-selected pair of objects, one living and...

    $1 - $5 per group Ages 4 - 14 1 to 2 hours
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    Lawrence Hall of Science
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    In this outdoor activity, learners use only their senses to to find the extremes of several environmental variables or physical factors: wind, temperature, light, slope and moisture. Learners also...

    $1 - $5 per group Ages 6 - 14 30 to 45 minutes
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    NOAA
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    In this activity, learners explore how light and dark colored objects absorb the Sun's radiations at different rates. Learners place one shiny coffee can and one coffee can painted black, each...

    $1 - $5 per group Ages 6 - 14 2 to 4 hours
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    Lawrence Hall of Science
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    In this activity, learners make their own Sun tracker to explore how ancient civilizations around the world studied the Sun. After creating the tracker with simple materials, learners measure the...

    $1 - $5 per student Ages 6 - adult 10 to 30 minutes