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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    Learners build a simple aneroid barometer to learn about changes in barometric pressure and weather forecasting. They observe their barometer and record data over a period of days. This activity...

    $1 - $5 per student Ages 8 - 14 1 to 4 weeks
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    Learners investigate the concept of humidity by using a dry and wet sponge as a model. They determine a model for 100% humidity, a sponge saturated with water. From this, they understand that...

    1 cent - $1 per group Ages 8 - 14 30 to 45 minutes
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    IEEE
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    In this activity, learners explore sensors and focus specifically on how to measure humidity using a sensor. Learners work in teams of "engineers" to design and build their own "...

    $10 - $20 per group Ages 8 - 18 1 to 2 hours
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    NOAA
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    In this activity, learners observe the effect of transpiration as water is moved from the ground to the atmosphere. Learners conduct the experiment by placing a large plastic bag over a living limb...

    1 cent - $1 per group Ages 6 - 14 2 to 4 hours
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    Learners develop an understanding of air pressure in two different activities. They model the magnitude of air pressure as gravitational force per unit area, and they use cookie wafers to model how...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    NOAA
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    In this quick activity, learners observe how the added sugar in a can of soda affects its density and thus, its ability to float in water. Learners explore this phenomenon by testing if two cans of...

    $1 - $5 per group Ages 6 - 14 Under 5 minutes
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    WNET.ORG
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    From the Weather Watchers featured theme on the CYBERCHASE website. Learners will conduct experiments to discover how air temperature and humidity work together to make condensation, dew, and fog....

    $1 - $5 per group Ages 8 - 11 45 to 60 minutes
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    Discovery Education
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    In this activity, learners use pinecones to create a hygrometer, a device that measures the moisture content of the air. Learners discover that in dry air, pinecones open their scales to disperse...

    $5 - $10 per group Ages 4 - 14 2 to 4 hours
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    The Exploratorium
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    In this activity, learners hook up a hair to a lever system and create a hair hygrometer to measure changes in humidity. Learn the science behind bad hair days, and learn how hair increases its...

    $1 - $5 per group Ages 8 - 18 45 to 60 minutes