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Surface Area and Soda Geysers
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This is an activity (located on page 4 of the PDF under Surface Area Activity) about surface area and reactivity.
Membrane Permeability with Beets
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In this lab exercise, learners explore diffusion, cell membranes and particle size using beets and three alcohols.
Desert Water Keepers
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In this outdoor, sunny day activity, learners experiment with paper leaf models to discover how some desert plants conserve water.