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In this activity, learners investigate the different salinity levels of oceans, rivers and estuaries.

Over $20 per group Ages 8 - adult 1 to 7 days
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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 activity, learners explore the concept of conducting or insulating electricity.

$5 - $10 per group Ages 8 - 11 1 to 2 hours
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This lesson focuses on graphene and its electrical properties and applications.

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