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    University of Kansas
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    In this activity, learners explore the relationship between electric charges and magnetic fields. Learners create a magnetic field using electricity and observe its effect on the magnetic needle of...

    $5 - $10 per group Ages 8 - 14 45 to 60 minutes
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    University of Kansas
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    In this activity, learners determine the shape of an unseen object by bouncing a ball off the object. Learners analyze how the ball hits the object (the angle at which it strikes the surface) to...

    1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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    University of Kansas
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    Using indirect observational methods, learners distinguish between charged and uncharged objects. This lesson uses magnetic marbles to represent charged particles and iron filings to represent a...

    $5 - $10 per group Ages 8 - 14 45 to 60 minutes
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    University of Kansas
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    In this activity, learners use two different techniques to estimate how many little things fit into one bigger thing. Learners estimate the number of peas that will fit into something the size of a...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    University of Kansas
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    In this activity, learners explore how objects can have positive, negative, or neutral charges, which attract, repel and move between objects. Learners charge various materials and observe their...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes

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