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Remote Ready Biology Learning Activities has 50 remote-ready activities, which work for either your classroom or remote teaching.
2014 revisions
The experiment with dialysis tubing has been replaced by a demonstration of osmosis in eggs. A version of the dialysis tubing experiment is available in "Diffusion across a Selectively Permeable Membrane" (/sci_edu/waldron/#diffusion). Most of the questions in the Student Handout have been revised for greater clarity or interest.