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    The Exploratorium
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    In this geology activity, learners create a model using a mixture of salt and sand inside a CD case. When the case is tilted or inverted, the mixture dramatically sorts into a layered pattern. With...

    $5 - $10 per group Ages 11 - 18 1 to 2 hours
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    The Exploratorium
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    This activity guide includes instructions on how to build a "Shake Table" by mounting an eccentric mass (off center) on the shaft of a small dc motor. Learners use this table to simulate...

    Over $20 per group Ages 11 - 18 45 to 60 minutes
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    Astronomical Society of the Pacific
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    This fun and simple hands-on astronomy activity lets learners make 3-dimensional models of the Earth and Moon. Using the Sun's light, learners will discover that the Moon rotates in the same...

    $5 - $10 per group Ages 6 - adult 10 to 30 minutes
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    The Exploratorium
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    In this activity, learners simulate the process of DNA fingerprinting by using electricity to separate colored dyes. Learners use simple materials to assemble a comb (electrophoresis chamber) to...

    Over $20 per group Ages 11 - 18 1 to 2 hours
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    NASA
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    In this activity, learners work in groups to design a parachute out of household items that keeps an egg secure when dropped from a certain height. Learners must follow a certain number of design...

    free Ages 11 - 18 45 to 60 minutes
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    University of Wisconsin-Madison
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    In this activity (pages 17-31), learners are introduced to techniques that are used to determine the structures of solid materials. Building or disassembling an instrument built from LEGO bricks...

    $5 - $10 per group Ages 14 - adult 1 to 2 hours
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    The University of Texas McDonald Observatory
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    In this two-part activity, learners explore the Earth and Sun's positions in relation to the constellations of the ecliptic with a small model. Then they extend to explore the motions of the...

    1 cent - $1 per group Ages 4 - 18 1 to 2 hours
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    NASA
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    In this small-group activity, learners assume the roles of pilots, air traffic controllers, and NASA scientists to solve five Air Traffic Control (ATC) problems. Learners examine different distance...

    $5 - $10 per group Ages 8 - 18 1 to 7 days
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    In this activity, learners investigate passive solar building design with a focus solely on heating. They learn how insulation, window placement, thermal mass, surface colors, and site orientation...

    $5 - $10 per group Ages 14 - 18 4 to 24 hours
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    My Science Box
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    In this activity, learners take on the role of various parts of the cell in order to model the process of protein synthesis. Each learner receives a card describing, step by step, what s/he should...

    $1 - $5 per group Ages 11 - 18 45 to 60 minutes

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