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Modeling Limits to Cell Size
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This investigation provides learners with a hands-on activity that simulates the changing relationship of surface areas-to-volume for a growing cell.
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.
Measuring and Protecting Skin
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In this activity, learners compare and contrast their own skin (including the area covered) with that of an orange.
Gummy Growth
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In this activity related to Archimedes' Principle, learners use water displacement to compare the volume of an expanded gummy bear with a gummy bear in its original condition.