Notes on Osmosis and Naked Eggs Experiment

Introduction

• Hosts: Adam and Ryan
• Topic: Exploring osmosis through the naked egg experiment.

Key Concepts

• Osmosis: Movement of water across a semi-permeable membrane from a dilute solution to a concentrated solution.

Materials Needed

Ingredients:

• Egg
• Vinegar
• Corn syrup
• Food coloring

Equipment:

• Glass
• Old spoon or gravy ladle
• Lab coat/apron and goggles (safety precautions)

Experiment Steps

1. Preparing the Naked Egg

• Place the egg gently at the bottom of a glass.
• Pour vinegar over the egg to dissolve the shell.
• Wait time: 24 hours to fully dissolve the shell.

2. Removing the Egg

• After 24 hours, drain the vinegar and rinse the egg.
• Observe the egg size increase due to water entering through osmosis.

3. Corn Syrup Stage

• Gently place the naked egg in a glass and pour corn syrup over it.
• Use a spoon to submerge the egg fully (prevents floating).
• Wait time: 24-48 hours.
• Observe the egg shriveling as water exits the egg into the syrup.

4. Colored Water Stage

• Prepare a glass of water with food coloring and stir.
• Place the shriveled egg into the colored water.
• Wait time: 24 hours.
• Observe the egg swelling as it absorbs water through osmosis.

Scientific Explanation

• Vinegar Reaction: Vinegar (acetic acid) reacts with calcium carbonate in the eggshell, producing carbon dioxide gas, water, and calcium acetate.
• Semi-permeable Membrane: The egg's membrane allows only water molecules to pass through.
• Water Movement:
  • From vinegar into the egg (swelling stage).
  • From egg into corn syrup (shriveling stage).
  • From colored water back into the egg (swelling in colored water).
• Osmosis aims to equalize the concentration of molecules on both sides of the membrane.

Conclusion

• Understanding osmosis through practical experiment involving naked eggs.
• Engagement: Viewers encouraged to try the experiment at home and share results.

Additional Information

• Ask questions on Facebook or comment for further assistance.
• Reminder to get parental permission before submitting videos to YouTube.