Egg Osmosis Lab
Objective: Students will conduct a simple experiment with eggs, vinegar, water, and corn syrup
in order to understand and observe the principle of osmosis.
Problem:
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How will the process of osmosis affect the condition of a cell when the cell is
submerged in a hypertonic solution?
How will the process of osmosis affect the condition of a cell when the cell is
submerged in a hypotonic solution?
How will the process of osmosis affect the condition of a cell when the cell is
submerged in an isotonic solution?
Materials:
 Mason Jar
 1 Slotted Spoon
 1 fresh egg (uncooked)
 250ml graduated cylinder
 White vinegar
 Corn Syrup
 Distilled water
Experimental Procedure:
Day 1
1. Get egg from teacher.
2. Record detailed observations on your data table. (qualitative data)
3. Measure 150ml white vinegar with the graduated cylinder and pour into the
mason jar.
4. Place egg in white vinegar (GENTLY).
5. Label jar and place in designated spot on counter.
Day 2
6. Remove egg, wash off gently. (Do not pick at egg, it will break!)
7. Make detailed observations of the egg and record on data sheet.
8. Measure 150 ml of corn syrup with the graduated cylinder and pour into
mason jar.
9. Gently place egg into corn syrup and let stand for 24 hours.
Day 3
10. Remove egg from syrup, wash off gently.
11. Make detailed observations of the egg and record on data sheet.
12. Measure 150ml of distilled water into graduated cylinder and pour into mason
jar.
13. Add two drops of food coloring to the distilled water.
14. Gently place egg into distilled water.
Day 4
15. Remove egg from syrup, wash off gently.
16. Make detailed observations of the egg and record on data sheet.
17. Dispose of egg in trash & clean all lab equipment.
18. Answer the lab discussion questions.
Data: Egg Observations (Include shape, color, feel/texture, size, etc. More details are better)
Day 1
Day 2
Day 3
Day 4
1. Explain the process of osmosis.
2. Which solution was hypertonic?
3. How will the process of osmosis affect the condition of a cell when the cell is submerged
in a hypertonic solution?
4. Which solution was hypotonic?
5. How will the process of osmosis affect the condition of a cell when the cell is submerged
in a hypotonic solution?
6. Which solution was isotonic?
7. How will the process of osmosis affect the condition of a cell when the cell is submerged
in an isotonic solution?