Pepsi history
Osmosis Egg Lab
I. Introduction
The reason for doing this lab was to see the process of osmosis. Osmosis is diffusion from a high concretion to a low concentration across a cell membrane. The cell membrane was represented by an egg without a shell.
II. Hypothesis
The egg that will placed in the distilled water will swell like a balloon. This is because distilled water is a hypotonic solution which makes water go in a cell (the egg without a shell) and make it swell.
The egg that will placed in the syrup will shrivel up and look a raisin a little. This is because syrup is a hypertonic solution which makes water go out of a cell (the egg without a shell) and make it shrivel up.
III. Materials
• The eggs without a shell
• Foam cups
• Distilled water
• Pancake syrup
• Electronic scales
• Plastic Spoons
IV. Procedures
1. Obtain eggs from instructor.
2. Place eggs in Styrofoam cups filled with vinegar. Make sure eggs are completely covered by vinegar.
3. Let sit for 1-2 days.
4. Carefully rub the remaining residue of the shell off the eggs. (Be careful: the eggs will break easily)
5. Record the mass of the eggs. (Use the following process for determining mass)
Place Styrofoam cup on scale. Zero Scale.
Place eggs in Styrofoam cup. Record its mass. (One at a time)
6. Fill another Styrofoam cup full of water and another with syrup.
7. Place an egg in each cup of different solutions.
8. Let sit for three days.
9. Determine mass of each egg after the three days.
10. Make observations as well.
The independent variable in this experiment was the different solution the eggs were in.
The dependent variable in this experiment was the egg without a shell.
V. Data
Data After sitting in the syrup for three days the mass changed from 76.6 to 43.7. The egg in the syrup had a hard yoke, the syrup was really watery now, and the egg’s skin turned brown. See Graph 1. After sitting in the Distilled water for three days the mass changed from 83.7 to 94.8. The
I. Introduction
The reason for doing this lab was to see the process of osmosis. Osmosis is diffusion from a high concretion to a low concentration across a cell membrane. The cell membrane was represented by an egg without a shell.
II. Hypothesis
The egg that will placed in the distilled water will swell like a balloon. This is because distilled water is a hypotonic solution which makes water go in a cell (the egg without a shell) and make it swell.
The egg that will placed in the syrup will shrivel up and look a raisin a little. This is because syrup is a hypertonic solution which makes water go out of a cell (the egg without a shell) and make it shrivel up.
III. Materials
• The eggs without a shell
• Foam cups
• Distilled water
• Pancake syrup
• Electronic scales
• Plastic Spoons
IV. Procedures
1. Obtain eggs from instructor.
2. Place eggs in Styrofoam cups filled with vinegar. Make sure eggs are completely covered by vinegar.
3. Let sit for 1-2 days.
4. Carefully rub the remaining residue of the shell off the eggs. (Be careful: the eggs will break easily)
5. Record the mass of the eggs. (Use the following process for determining mass)
Place Styrofoam cup on scale. Zero Scale.
Place eggs in Styrofoam cup. Record its mass. (One at a time)
6. Fill another Styrofoam cup full of water and another with syrup.
7. Place an egg in each cup of different solutions.
8. Let sit for three days.
9. Determine mass of each egg after the three days.
10. Make observations as well.
The independent variable in this experiment was the different solution the eggs were in.
The dependent variable in this experiment was the egg without a shell.
V. Data
Data After sitting in the syrup for three days the mass changed from 76.6 to 43.7. The egg in the syrup had a hard yoke, the syrup was really watery now, and the egg’s skin turned brown. See Graph 1. After sitting in the Distilled water for three days the mass changed from 83.7 to 94.8. The