First of all, here is the original worksheet. Remember, we used a salt solution, not a sugar solution.
Lab Guidelines - Osmosis in a Cell Model
You will also need to include and reference the collective class data, found HERE.
Please review the following as you are TYPING/reviewing your lab report:
Title: Use the same title from the worksheet...no need to be creative.
Objective: Retype the objective you wrote on the worksheet. Remember, NO I's, MY's, WE's, and OUR's! Type the objective not from a personal perspective, but from a "matter of fact" perspective.
Hypothesis: Retype the hypothesis you wrote on the worksheet. A good hypothesis not only predicts what will happen, but offers a reason why.
Remember, NO I's, MY's, WE's, and OUR's!
Materials: Copy the list of materials from the worksheet. Arrange in column format, ideally in two or more columns. Remember, we used a salt solution, not a sugar solution.
Procedure: Copy the procedure from the worksheet (it is not plagiarizing if I give you permission). You can literally cut-and-paste from the worksheet above. Remember, we used a salt solution, not a sugar solution.
Results: Create tables for your results... I would create 4. I would create one for each of your eggs, and two more for the class average(s) (one for the egg in freshwater, one for the egg in solute water. Each table should have the initial mass (in grams), the final mass after 30 minutes (in grams), the change in mass (in grams), as well as an indication of a positive or negative change.
Discussion: In paragraph form (at least 2 of them) do the following:
Conclusion: The conclusion should be short, but sweet. That aside, it is just as important as the discussion. In one paragraph:
For a model of what a lab should look like, see here: Model Lab Report (Bromelain Enzyme in Tropical Fruits). Please keep in mind that this is NOT the lab you are typing up tonight... this is just a model.
Unit 3: Life, Cells, & Energy
Lab Guidelines - Osmosis in a Cell Model
You will also need to include and reference the collective class data, found HERE.
Please review the following as you are TYPING/reviewing your lab report:
Title: Use the same title from the worksheet...no need to be creative.
Objective: Retype the objective you wrote on the worksheet. Remember, NO I's, MY's, WE's, and OUR's! Type the objective not from a personal perspective, but from a "matter of fact" perspective.
Hypothesis: Retype the hypothesis you wrote on the worksheet. A good hypothesis not only predicts what will happen, but offers a reason why.
Remember, NO I's, MY's, WE's, and OUR's!
Materials: Copy the list of materials from the worksheet. Arrange in column format, ideally in two or more columns. Remember, we used a salt solution, not a sugar solution.
Procedure: Copy the procedure from the worksheet (it is not plagiarizing if I give you permission). You can literally cut-and-paste from the worksheet above. Remember, we used a salt solution, not a sugar solution.
Results: Create tables for your results... I would create 4. I would create one for each of your eggs, and two more for the class average(s) (one for the egg in freshwater, one for the egg in solute water. Each table should have the initial mass (in grams), the final mass after 30 minutes (in grams), the change in mass (in grams), as well as an indication of a positive or negative change.
Discussion: In paragraph form (at least 2 of them) do the following:
- Your discussion should reference both your data as well as the class average(s). Consider and discuss which data is the most reliable.
- Thoroughly explain the results... almost to the point where you imaging the reader cannot understand them just by looking at your tables. Discuss not only the data (mass and change in mass) but also compare the results of your two eggs as well as compare your results to the class average(s).
- For each egg, offer a possible and realistic cause for their respective changes in mass.
- Your last paragraph(s) in the discussion should be the error analysis. Remember error is not mistakes... error include factors that you cannot control which may have affected your results. Ideally identify 3 sources of error, explain their potential effect on your data, and offer a possible remedy, even if it is somewhat far-fetched.
- Remember, NO I's, MY's, WE's, and OUR's!
Conclusion: The conclusion should be short, but sweet. That aside, it is just as important as the discussion. In one paragraph:
- Mention the objective. Confirm that the objective was met by quickly stating the results that address the objective.
- Mention the hypothesis. Address the accuracy of the hypothesis by comparing it to the results. If it is correct, identify it as correct and explain. If it is partially correct, identify it as partially correct and explain. If it was completely incorrect, identify it as incorrect and explain.
- Remember, NO I's, MY's, WE's, and OUR's!
For a model of what a lab should look like, see here: Model Lab Report (Bromelain Enzyme in Tropical Fruits). Please keep in mind that this is NOT the lab you are typing up tonight... this is just a model.
Unit 3: Life, Cells, & Energy
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