Science Project:

Egg Lab

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  • Why didn’t the 100% corn syrup egg grow?
  • Why would the cell membrane not dissolve?
  • If the egg were too swell too much what would happen?

A cell may swell by absorbing nutrients surrounding its cell membrane. If it swells too much, normally it splits into two. The egg in this experiment won’t split into two, but you will see what happens to a cell when it swells and when it cannot absorb its surroundings.

  • Water
  • Vinegar
  • Corn syrup
  • Eggs
  • 3 containers to hold the eggs

  1. Take the containers and fill them with vinegar and a bit of water.
  2. Put all 3 eggs in them. Leave them in the solution overnight.
  3. Make sure all of their shells are dissolved.
  4. Take them all out of their containers, dry the eggs and place them somewhere while you clean the containers.
  5. Measure the eggs with a ruler. Be very accurate, measure them in millimeters or centimeters. Also, touch the eggs CAREFULLY and record a detailed description of all of them.
  6. Fill one container with all water.
  7. Fill another with half water and half corn syrup.
  8. Fill the last one with all corn syrup.
  9. Place one egg in each.
  10. Leave them in their containers overnight.
  11. Take all of them out of their containers and measure them again. Write another detailed description of all of them.
  12. Record all of your data and make a conclusion.

Terms/Concepts: Cell Swelling; Cell Membrane; Osmosis

References:

Osmosis and Diffusion – http://hyperphysics.phy-astr.gsu.edu/hbase/kinetic/diffus.html

Osmosis Animation – http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter2/animation__how_osmosis_works.html

Chicken Egg and its layers – http://msucares.com/poultry/reproductions/poultry_parts_embryo.html

Author: Danielle Abadam
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