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Detect Solar Storms

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In this activity, learners build their own magnetometer using an empty soda bottle, magnets, laser pointer, and household objects.
$5 - $10 per student Ages 11 - adult 1 to 2 hours

Water Body Salinities II

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In this activity, learners discuss the different salinities of oceans, rivers and estuaries.
$5 - $10 per group Ages 8 - adult 1 to 7 days