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    Science Friday
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    In this activity, learners use household materials to investigate and explore their ability to smell an odor. Learners compare and contrast results to determine if some individuals have a better...

    Over $20 per group Ages 11 - 14 45 to 60 minutes
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    The Science House
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    In this chemistry activity, learners explore density by using four solids and 6 liquids to create colorful, layered rows. This activity can be done as a demonstration or lab, with learners trying...

    $1 - $5 per group Ages 6 - 18 5 to 10 minutes
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    The Science House
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    In this chemistry demonstration, learners investigate the rule "likes dissolve likes" by combining three, immiscible liquids to create a colorful density column. Learners are asked, "...

    $1 - $5 per group Ages 6 - 18 Under 5 minutes
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    Centers for Ocean Sciences Education Excellence
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    This activity provides a hands-on experience with a scale model, a relatively high viscosity fluid, and feeding behaviors. Learners attempt to capture "food" (a lentil) with a feeding...

    $5 - $10 per group Ages 8 - 18 30 to 45 minutes
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    American Chemical Society
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    In this activity on page 4 of the PDF, learners make some special effects, including snow and breaking glass, with supplies found in the home. In the first activity, learners make and observe four...

    $10 - $20 per student Ages 8 - 14 1 to 2 hours
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    Science Friday
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    In this activity, learners experiment with creating various types of bubble solutions and testing which ingredients form longer-lasting bubbles. Learners investigate how surface tension works and...

    $10 - $20 per student Ages 11 - 14 45 to 60 minutes
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    American Chemical Society
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    In this activity on page 12 of the PDF, learners examine how recyclable materials are separated by various properties at recycling centers. Learners determine the density of various objects as well...

    $5 - $10 per student Ages 8 - 14 45 to 60 minutes
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    Learners conduct two activities to investigate two properties of liquids: density and viscosity. In a clear container, learners stack 7 different liquids which will layer according to their density...

    $5 - $10 per group Ages 11 - 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 create beautiful fluid motion. They explore fluid dynamics, surface tension, solubility, and buoyancy while mixing liquids together. Learners can photograph or film the fluid motion for...

    $5 - $10 per group Ages 11 - 14 45 to 60 minutes

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