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Understanding Osmosis: The Naked Egg Experiment

In this Naked Egg experiment, students investigate osmosis by observing an egg that has lost its shell, leaving its cell membrane exposed. Initially, the egg swells due to water influx through the semi-permeable membrane. Students must research and explain why this occurs. After 24 hours in corn syrup, students observe further changes in the egg's appearance, reflecting the effects of osmosis again. This hands-on assignment fosters a deeper understanding of cellular processes and requires complete sentences for clarity.

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Understanding Osmosis: The Naked Egg Experiment

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  1. Naked Egg Assignment

  2. Part 1 Naked Egg • The egg has lost its shell and its cell membrane is exposed. As you can see, the egg has swelled. The question I want you to answer is: Why has the egg swelled? What is causing it? Use the Internet to investigate and write, in complete sentences, an explanation. This is worth 5 points, have it in by Friday (11/01/2013).

  3. Part 2 • Now that the egg has spent twenty-four hours in the corn syrup, you should be seeing a remarkable change in it. In this part of the naked egg assignment, tell me what you observe (what does the egg look like); what if anything has changed; and tell me why the change, if there is any, has occurred. This is worth 10 points (12 if you type it).

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