EGG DIFFUSION LAB DIRECTIONS

1
EGG DIFFUSION LAB DIRECTIONS
2

• Title Egg Diffusion Lab
• Problem What will happen to the mass and
  texture of an egg when placed in vinegar, corn
  syrup, and water?

3

• Background Include explanations/answers to the
  following topics in complete sentences. You also
  need to include one introductory statement and a
  conclusion sentence. This background should be
  in paragraph form, like an essay.
• Define diffusion and osmosis
• Define isotonic, hypertonic, and hypotonic
• What determines whether or not diffusion occurs?
• What is osmotic pressure?
• How is the shell of an egg similar to a cell
  membrane?

4

• Hypothesis
• If the egg is soaked in vinegar, then
  _______________
• If the egg is soaked in corn syrup, then
  _____________
• If the egg is soaked in water, then
  _________________
• Procedure
• Materials List List materials used
• Instructions Write and number the steps taken
  to complete the experiment.
• Variables
• Identify the independent variable
  _______________________
• Identify the dependent variable
  ________________________

5
DATA

• Table 1 Mass and appearance of egg after soaking
  in various solutions

Mass (grams) Gain/Loss (grams) Appearance Type of solution
Raw Egg NO DATA
Egg after vinegar
Egg after corn syrup
Egg after water
6

• Graph 1 Create one graph to depict your data
• Discussion
• Describe your data chart and graph. Using the
  data, describe and explain the changes that
  occurred in the egg at each step. Use actual
  numbers to back up your findings.
• Discuss 2 possible sources of error within the
  procedure used and 2 possible effects of those
  errors on the outcome of the lab.

7

• Conclusion
• Restate the purpose.
• Summarize the results of the experiment.
• Explain if the data supported your hypothesis or
  not.
• Explain if the results make sense based on your
  background knowledge.
• Describe modifications your could make to this
  experiment to further investigate the problem