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    NOAA
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    In this quick activity, learners observe how salinity and temperature affect the density of water, to better understand the Great Ocean Conveyor. Learners observe what happens when they add...

    1 cent - $1 per group Ages 6 - 14 5 to 10 minutes
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    Museum of Science and Industry, Chicago
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    Learners add salt to ice to chill it lower than its freezing point. This chilled ice can then be used to freeze milk and sugar into ice cream. Learners can experiment by adding different flavors...

    $5 - $10 per group Ages 8 - 18 5 to 10 minutes
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    NOAA
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    In this activity, learners discover that as the salinity of water increases, the density increases as well. Learners prove this by attempting to float fresh eggs in saltwater and freshwater. This...

    1 cent - $1 per group Ages 6 - 14 5 to 10 minutes
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    University of Washington
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    In this activity (4th activity on the page), learners test to see if saliva is necessary for food to have taste. Learners dry their tongues with clean paper towels and then taste samples of salt,...

    $1 - $5 per group Ages 8 - 18 5 to 10 minutes
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    The Exploratorium
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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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    The Exploratorium
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    In this online activity, learners experience the thrill of pickle making, and explore how a cucumber becomes a pickle. In this "virtual kitchen," leaners discover that pickling takes...

    free Ages 6 - 14 5 to 10 minutes
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    Oregon Museum of Science and Industry
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    Learners make a simple battery out of "sandwiches" of aluminum foil, pennies, and a salt water-soaked paper towel. They detect the electricity the battery makes by listening to it on a...

    $1 - $5 per group Ages 8 - 14 5 to 10 minutes
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    The Exploratorium
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    Making liquids of different densities to perfectly lay on top of each other can be a frustrating exercise. The Exploratorium created this activity as a fool proof way of making a density column.

    1 cent - $1 per student Ages 6 - 18 5 to 10 minutes
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    Oregon Museum of Science and Industry
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    Extract your DNA from your very own cells! First, learners swish salt water in their mouth to collect cheek cells and spit the water into a glass. Then, learners add liquid dishwashing detergent...

    1 cent - $1 per student Ages 8 - 18 5 to 10 minutes
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    The Exploratorium
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    In this science trick, learners get an egg to stand-up on its long-axis vertical to a table's top. Learners use salt grains, which are virtually unnoticeable to viewers, to give an egg's...

    1 cent - $1 per student Ages 8 - 18 5 to 10 minutes

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