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    National Aeronautics and Space Administration
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    In this activity, learners discover the difficulty of ocean exploration by human beings as they investigate water pressure. Learners determine how depth affects water pressure and how density...

    $5 - $10 per group Ages 8 - 11 10 to 30 minutes
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    NOAA
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    In this quick and easy activity and/or demonstration, learners use two empty 2-liter bottles and hot tap water to illustrate the effect of heat on pressure. Learners will be surprised to see what...

    free Ages 6 - 18 5 to 10 minutes
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    Twin Cities Public Television
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    In this ocean engineering activity, learners explore buoyancy and water displacement. Then, learners design models of deep sea divers that are neutrally buoyant.

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes