Cardinal Notes
RIGHT-page 1
Topic/Objective:
Name:
Class: Biology
Date:
Gummy Bear Diffusion Lab
Essential Question:
Materials:
Plastic Cups
Gummi Bears
Salt
Testable Question:
Corn Syrup
Tap Water
Distilled Water
Electronic Balances
Rulers
Graduated Cylinders
Identifying Variables:
Independent Variable: (What are you changing?)
_________________________________________
_________________________________________
_________________________________________
Dependent Variable: (What are you measuring?)
_________________________________________
_________________________________________
_________________________________________
Controls: (What are you keeping the same throughout the experiment?)
_____________________________________________________________________________
_____________________________________________________________________________
Hypothesis: (If __________ (IV), then _____________ (DV)…because
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
Sketch of your Lab Set-up:
Control Group:
Experimental Group(s):
Teacher OK: ____________
Cardinal Notes
LEFT – pg. 1
Gummy Bear Diffusion Lab Set-up
Important Formulas:
Volume = Length x Width x Height
Data Table: How are you going to record your data? Hint: Think about how we have set-up data tables
during past labs (Skulls, Termites, etc.)
Create a Data Table:
Lab Procedure: (Be specific!! Anyone should be able to easily duplicate your experiment!)
1. _______________________________________________________________________________
2. _______________________________________________________________________________
3. _______________________________________________________________________________
4. _______________________________________________________________________________
5. _______________________________________________________________________________
6. _______________________________________________________________________________
7. _______________________________________________________________________________
8. _______________________________________________________________________________
9. _______________________________________________________________________________
10. ______________________________________________________________________________
Teacher OK: ____________
Lab Set-up:
Now follow your lab procedures to set-up your experiment.
BE SURE TO TAKE YOUR MEASUREMENTS BEFORE YOU PUT ANY GUMMY BEARS IN CUPS!!!!
Cardinal Notes
LEFT – pg. 2
Gummy Bear Diffusion Lab Graphing and Analysis
Graphing:
Create a graph that shows your Initial and Final Mass and/or Volume for EACH one of your
“cells” (gummies). Hint: you should have 6 bars on your graph!
o Determine an APPROPRIATE scale for your axes.
o Label ALL of the axes and give your graph a descriptive title.
o Color the graph (Bars).
Cardinal Notes
LEFT – pg. 3
Gummy Bear Diffusion Lab Analysis
Lab Analysis / Questions:
1. Based on your lab results, how did the lab conditions (variables) affect the homeostasis of the
cell? _______________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
2. Did your classmates identify any other lab conditions (variables) that would affect the
homeostasis of the cell? If so, what were they?
_______________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
3. Based on the lab results draw the gummy bear in a hypotonic, isotonic, and hypertonic
solution.
a. Draw arrows indicating which way the water is flowing in each solution.
b. Label your drawings.
Hypotonic Solution
Isotonic Solution
Hypertonic Solution
4. Explain why transplant organs CANNOT be stored in distilled water. What would happen to
the cells in the organs. BE SPECIFIC!!! ____________________________________________
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
Cardinal Notes
LEFT – pg. 4
Gummy Bear Diffusion Lab Conclusion
Conclusion: Write a lab conclusion based on the results of your lab. (It should be at least 2 paragraphs)
o Was your hypothesis supported or refuted (disproved)?
o What data did you gather?
o EXPLAIN your data!!!!!! How it lead you to your lab conclusion???? BE SPECIFIC!!!
o Why do you think you saw those results?
o Did anything go wrong?
o What would you like to test next?
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________