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Measure the Pressure: The "Wet" Barometer
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In this activity, learners use simple items to construct a device for indicating air pressure changes.
Traveling Nanoparticles Model
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This is an activity (located on page 3 of the PDF under Nanosilver Activity) about diffusion of small molecules across cell membranes.
Measure the Pressure II: The "Dry" Barometer
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In this activity, learners use simple items to construct a device for indicating air pressure changes.