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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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    In this quick and easy activity and/or demonstration, learners illustrate the effect of the weight of air over our heads. Since we do not typically feel atmospheric pressure, this activity allows...

    free Ages 6 - 18 Under 5 minutes
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    In this activity, learners will measure the length of their shadow from the Sun and compare it three to four months later. This process will help learners investigate Earth's rotation and...

    free Ages 6 - 14 1 to 12 months
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    In this quick activity, learners use a toaster to investigate the source for the Earth's wind. Learners hold a pinwheel above a toaster to discover that rising heat causes wind. Use this...

    free Ages 4 - 14 Under 5 minutes
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    In this activity, learners explore the different salinities of various sources of water by taste-testing. Learners will taste water samples with the appropriate amount of salinity representing...

    $1 - $5 per group Ages 6 - 14 10 to 30 minutes
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    In this activity, learners will listen to as many radio stations as possible to discover that AM radio signals can travel many hundreds of miles at night. Learners log the call signs, locations,...

    free Ages 8 - 18 1 to 2 hours
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    In this activity (Lesson 1), learners work in groups to create tide simulations. Learners develop a testing procedure, detail their work in a Laboratory Report, illustrate their simulation and...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    In this activity, learners act as the Earth and observe how different angles between the Sun, Earth, and Moon affect the phases of the moon we see each month. Learners work in pairs and make...

    $1 - $5 per group Ages 6 - 14 10 to 30 minutes
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    In this activity, learners explore how the shapes, sizes, and distances of land masses appear differently on two different models of Earth: an icosahedron and a flat map. First, learners find the...

    1 cent - $1 per group Ages 11 - 18 30 to 45 minutes
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    In this activity, learners working in pairs saturate a cotton ball using water drops from an eyedropper to demonstrate the high water capacity of clouds. Learners also compare their estimates to...

    1 cent - $1 per group Ages 6 - 14 10 to 30 minutes

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