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In this activity, learners discover that the way a material behaves on the macroscale is affected by its structure on the nanoscale.

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.

In this activity, learners explore sensors and focus specifically on how to measure humidity using a sensor.

In this activity, learners explore the devices used over time to measure changes in temperature.