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    Utah Education Network
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    In this math lesson, learners use fruit to learn about proportions and percentages. Learners compare the weights of the edible and non-edible portions of fruit. Learners practice using different...

    $5 - $10 per group Ages 11 - 14 45 to 60 minutes
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    Oregon Museum of Science and Industry
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    As a group, learners investigate three packages which are all the same size and shape, but have different contents. One is filled with foam, one is filled with wood, and one is filled with metal....

    $1 - $5 per group Ages 4 - 11 10 to 30 minutes
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    The Exploratorium
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    Yes, you can weigh your car by figuring out your wheel's tire pressure combined with the "tire's footprint." You'll need someone with a car, driver's license, and...

    free Ages 11 - adult 10 to 30 minutes
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    Perkins School for the Blind
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    This activity was designed for blind learners, but all types of learners can utilize it to investigate volume, mass, and density. The learner will create several boxes with different materials in...

    $5 - $10 per group Ages 8 - 18 10 to 30 minutes
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    Learners investigate weight by building a spring scale. They observe and record how it responds to objects with different masses. This activity can be combined with other activities to create a...

    $1 - $5 per group Ages 11 - 14 45 to 60 minutes
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    Lunar and Planetary Institute
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    In this activity, learners confront their perceptions of gravity in the solar system. Learners weigh themselves on scales modified to represent their weights on other worlds to explore the concept...

    Over $20 per group Ages 8 - 14 30 to 45 minutes
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    Learners build and investigate pendulums of different lengths. They discover that the longer the string of the pendulum, the longer the time it takes to swing. Learners also discover that changing...

    $1 - $5 per group Ages 11 - 18 30 to 45 minutes
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    Science Museum of Minnesota
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    Build a pinwheel that works without wind! This activity contains steps on how to build a parachuting pinwheel out of paper, a film canister, and some brads. Throw it off a high place and time how...

    1 cent - $1 per student Ages 4 - 8 30 to 45 minutes
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    Learners investigate how drag affects the falling rate of objects. They construct paper objects of different shapes and sizes, use clay to make them all the same mass, and then drop them all from...

    1 cent - $1 per group Ages 11 - 14 45 to 60 minutes
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    Lunar and Planetary Institute
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    In this demonstration, learners compare the relative sizes and masses of scale models of the planets as represented by fruits and other foods. Learners dunk the "planets" in water to...

    $10 - $20 per group Ages 8 - 14 30 to 45 minutes

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