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Learners explore water's property of cohesion through two investigations.

$1 - $5 per group Ages 8 - 14 1 to 2 hours
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Learners see that a carrot slice sinks in fresh water and floats in saltwater.

1 cent - $1 per group Ages 8 - 14 10 to 30 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.

1 cent - $1 per group Ages 6 - 14 10 to 30 minutes
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In this activity, learners investigate and compare the rate of drying in different conditions.

$1 - $5 per group Ages 6 - 11 30 to 45 minutes
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In this activity (page 2 of PDF under GPS: Glaciers Activity), learners will measure the rate at which water streams out of a leaky cup.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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Learners demonstrate how water can distort, refract and magnify light.

$1 - $5 per group Ages 8 - 14 1 to 2 hours
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Learners conduct a "blind" taste-test of several types of enhanced or fitness water drinking water that has commercially added substances like vitamins, sugars, or herbs.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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In this activity on page 10 of the PDF, learners detect the amount of energy that can flow through a sodium chloride electrolyte solution with a light sensor.

$5 - $10 per student Ages 8 - 14 45 to 60 minutes
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In this outdoor, sunny day activity, learners experiment with paper leaf models to discover how some desert plants conserve water.

$10 - $20 per group Ages 8 - 18 45 to 60 minutes
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This activity (located on page 3 of the PDF under GPS: Glaciers Activity) is a full inquiry investigation into the forces of gravity and air pressure.

1 cent - $1 per group Ages 8 - 14 1 to 2 hours
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In this activity about water's cohesive and adhesive properties and why water molecules are attracted to each other, learners test if objects repel or absorb water.

$5 - $10 per student Ages 8 - 11 10 to 30 minutes
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In an investigation called "Shape It!" learners craft tiny boats out of clay, set them afloat on water and then add weight loads to them, in order to explore: how objects stay afloat in water; what th

$1 - $5 per group Ages 8 - 14 30 to 45 minutes
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In this sunny day experiment, learners measure and compare how quickly light and dark colored materials absorb heat.

$5 - $10 per group Ages 8 - 14 10 to 30 minutes
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In this investigation, learners explore the force known as buoyancy by placing various objects into water and observing how they behave (for example, which sink more quickly, which float, how much wat

$1 - $5 per group Ages 8 - 14 30 to 45 minutes
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In this activity (located on page 9 of the PDF), learners are introduced to Aesop's fable, "The Crow and the Pitcher." In the story, a clever crow drops pebbles into a pitcher to cause the water level

free Ages 6 - 11 45 to 60 minutes
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In this physics activity, learners will explore buoyancy.

1 cent - $1 per student Ages 4 - adult 10 to 30 minutes
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In this activity learners explore surface tension. Why are certain objects able to float on the surface of water and how do detergents break the surface tension of water?

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners calculate their water usage (in cups and galloons) during an average shower. Learners also chart and analyze water usage during showers in their households.

free Ages 6 - 11 45 to 60 minutes
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Build a hydrometer (measures the density of a liquid) using a pipet or eyedropper.

1 cent - $1 per student Ages 8 - 18 5 to 10 minutes
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In this activity, learners explore how engineering has developed various means to remove impurities from water.

$10 - $20 per group Ages 8 - 18 1 to 2 hours