# Naked Egg Lab

In Glogpedia

by wbumpass
Last updated 7 years ago

Discipline:
Science
Subject:
Experiments
9

Naked Egg Lab

Pre-Lab

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2. A raw egg was cracked into a solution of 100% alochol. The egg was left for a few days in the solution and the result was that the egg was cooked. This happened because all of the water was drawn out of the egg by the solution.

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1. A bag of cornstarch and water solution is added to a cup of iodine. My prediction is that the starch will stay in the bag seperate from the iodine. The result of the expirament was: some of the startch was drawn out of the bag but other parts were not, similar to how the cell membrane works. 2. A raw egg was cracked into a solution of 100% alochol. The egg was left for a few days in the solution and the result was that the egg was cooked. This happened because all of the water was drawn out of the egg by the solution.

How will soaking our egg in 10% Karo syrup change the egg?

Question

Procedures: 1. First you place the egg in vineger to remove the shell of the egg. 2. Next, you mass the egg and record your results. 3. After that, you mix 10 oz. of Karo syrup with 90 oz. of water to make a 10% solution of Karo syrup. 4. Then, you place the egg into the solution and let it sit covered for two days. 5. after two days you mass the egg again. 6. Finaly, you record the nes mass and find the change in mass along with teh percent change. This will allow you to see if the solution's tonicity.

Indilendent Variable- the concentration of the Karo syrup solutionDependent Variable- the percent change in mass of the eggConstants- the amount of solution, temperature, type of egg, volume of solution in cup, and type of cup

Design

Materials:~10 oz. Karo Syrup ~90 oz. water~ 1 raw egg~vineger solution~small cup to hold solution~ballance or scale to measure mass

HypothesisIf we change the concentration of the Karo syrup to 10% solution, then then the egg will have a greater mass because the egg will take in water due to the higher concentration of solute inside the egg.

1a. My hypothesis was, if we change the concentration of the karo syrup to 10% solution, then the egg will have a greater mass because the egg will take in water due to the higher concentratipn of solute inside the egg.1b. My hypothesis was supported because the massof the egg after being in Karo syrup was greater than the mass of the egg before it was in Karo syrup.1c. The mass before the egg was in the Karo syrup was 81.9g, and the mass after the egg was in the Karo syrup was 88.6g. This was a 6.7g change or 8.18% change. 2a. One source of error for this expirament was the durration of time that the egg spent in the soulution. 2b. This could lead to inaccurate results because an egg that was in the solution for a longer period of time could have a greater percent change as opposed to an egg that did not spend as much time in the solution. 3a. We are currently learning about tonicity and the types of cell transportation in class. This relates to this lab because the tonicity of the solution casusd the result of the egg getting largeafter spending time in the solution.3b. A person needs to know about tonicity and cellular transportaion because a person needs to know about the reactions that occure in their body. A person needs to know about the reactions in their body so they can know the best way to stay healthy. 3c. A person expirences this concept every day when they drink something with a tonicity higher or lower than water, like soda and alcohol.

Conclusion

Class Data Table

Group Data Table

I noticed that after 10% solution the percent change decreased instead of increased. That was because the solute had a higher concentration outside instrad of inside the egg, so water left the egg.

I noticed that the percent change was positive. This was because there was a higher concentration of solute inside the egg as opposed to outside the egg. this made the egg hypo tonic.

Graph

Class Egg

Individual Egg

Picture of me