Makeup Gummy Bear Lab Template
Introduction
-Briefly describe what the purpose of the lab was, as well as when and where it was done.
Hypothesis
-Bullet and state your hypothesis.
+ The gummy bear will have no overall change in mass ( ? variable ) when placed in a ______(? variable) salt solution.
-Be sure to underline and identify with parentheses the independent and dependent variables in your hypotheses.
Materials
-List of materials you used- may be one complete sentence as a list separated by commas.
-Explain any safety issues you maintained for lab and why?
Procedure
-Explain the general procedure for the set-up of the gummy bear lab.
-Identify the control and treatment groups in your procedure.
-Document the start and stop time of the experiment- using date and time.
-Identify the variables that were controlled in the experimental design of the lab.
Data & Results
-Complete before and after data tables of meaningful data you recorded (with units mL, g and so on)
- Calculate the percent change of mass for each salt concentration.
current mass – original mass
------X 100 = percent change in mass
Original mass
-Graph the percent change in mass for each gummy and concentrations of salt used on the graph
(cut and paste graph onto a larger sheet if you wish – landscape paper orientation)
Discussion
-Explain if your data confirmed or refuted your hypothesis. Did what you actually saw compared to what you thought would happen.
- Explain the processes of diffusion and osmosis as they relate to the change in mass of the gummy bear. Think in terms of overall solute concentrations.
-Explain what effects did the following ingredients in the gummy bear have on water. Use at least one paragraph for each substance. Be sure to demonstrate biochemistry knowledge and research here (chemical formula, structural formula, reactivity with water, functional group dynamics, substance’s purpose in the gummy bear) Web site to start <
1. Sucrose
2. Lauric acid (coconut oil)
-Was the gummy bear semi-permeable or permeable? Why based on your observations and your knowledge?
-Reflect on the experimental design andexplain at least 2more design flaws. You may NOT use human error as a reason for the flaws. How could you correct for the flaws you identified next time?
References
Need a total of 3 – may use your biology book as one (web or book) and PubChem as another
Example of book references
Campbell, Neil, Brad Williamson, and Robin J. Heyden. Biology-Exploring Life. Upper Saddle River: Pearson Education, 2004
- If use web sites here is a web site example. No Wikipedia, or other blog type sites. Use university, museuem, or government websites that are peer-reviewed.
Example of biology book as web site.
Campbell, Neil. "Biology-Exploring Life". Pearson Education. 11/14/2008 <
“PubChem.” United States National Library of Medicine. 5/19/2008 updated. <