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# Osmosis Egg Lab Essay

Below is an essay on "Osmosis Egg Lab" from Anti Essays, your source for research papers, essays, and term paper examples.

Osmosis/Egg Lab
By: Nicole Dressen
Problem to Solve: How the mass of an egg changes in different substances.
Information Collected: A. Hypotonic: a substance with lower concentration when compared to another substance.
B. Isotonic: when the concentration of two substances is the same.
C. Hypertonic: a substance with more concentration when compared to another substance.

Hypothesis: I think the mass of the egg that is in the water will stay the same but the mass of the egg that is in the sugar will increase mass.
Variables: The manipulated variables are the water and the sugar and the responding variable is the mass of the egg.
Directions: 1. Soak two eggs in vinegar for one day.   2. Take two 200ml beakers and fill one with 150ml of water and the other with 150ml of corn syrup. 3. Measure the masses of the eggs and record. 4. Put one egg in the beaker of water and the other in the beaker of syrup. 5. Take both eggs out after 15 minutes and record each of their masses.   6. Repeat step 5 four times.
Data/Observations:

Conclusion: Recall: We did a lab to learn about how the mass of an egg changes when it is put in different substances.
Explain: We recorded the masses of two eggs every 15 minutes. One was put in water while the other was put in corn syrup.
Results: The mass of the egg that was put in water increased while the mass of the egg that was put in corn syrup decreased.
Uncertainties: The eggs did not have the same mass to start out with and the scale could have been off.
New: I learned that the mass of an egg can change when put in different substances.
Next: Put more objects in different substances to see if their masses change.
Questions: 1. Substances move in and out of the cell membrane changing the concentration levels in order to keep the cell balanced.
2. The mass of the egg in the corn syrup decreased while the mass of the egg in water increased.
3. Before we did anything to the egg, it was isotonic because the cells’...

• Submitted by: ndressen
• on March 6, 2012
• Category: Science And Technology
• Length: 641 words
• Views: 1037
• Popularity Rank: 50534
• 1 rating(s)

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