Lab Report: Percentage of Sugar in Gum
Date Assigned: 01/13/2014
Date Due: 01/23/2014
You are to prepare a formal lab report on the Lab: Calculating the Percentage of Sugar in Gum. You are to use the data from your 2 trials but you may include your partner(s) results if you wish. The report is to include the following & all questions/discussions should be addressed:
Formal Lab Report
1. Purpose: state the the purpose, reason we are conducting this lab. This section should include your Hypothesis which is stated as "if".."then".."because" or a cause-effect reason for the hypothesis..Describe in detail how the 2 variables are related
2. Materials: list all equipment...we used Wrigley's Doublemint Gum (2 pieces each)
3. Procedure: please include all steps you followed..it should be detailed enough that another person who has not done this lab could follow/complete your process.**Include your variables & controls**
4. Data: your are to include the Data Table form the lab sheet that has the info on both pieces of gum, Before Chewing & After Chewing. Data should be both Quantitative (numbers: mass, volume, density ) and Qualitative (descriptive: color, texture, smell etc)
5. Calculations: show your work using the formula on the lab sheet for calculating the %Sugar for your Trial 1 & Trail 2 (If you have trouble typing this section on the computer--it may be hand written, cut-out & glued into the lab report)
6. Results-
-Describe what you observed
-Discuss your %Sugar you calculated compared to the known % (70%)
-Calculate your % Error using the % Error Formula (difference between actual & experimental divided by the actual x 100 = % Error)
**The lower your %Error...the closer you are to the actual value,. The lowest % Error you can obtain is 0%.
-Your 3 bar graphs (for Trial 1 & 2: Before & after chewing--so there are 6 bar graphs in total..they may be hand done or created on the computer, may be all on 1 page as they are small) & what they indicate/back up your results
-Why was the Density of the gum affected?
-Type of sugar found in sugared gum
-Chemical & structural formula of this sugar
-How does your body use this sugar?
-What is ATP?
-Is this type of sugar considered to be an effective source of ATP? Why/why not?
-What you learned from this lab
-New Lab skills?
-Practical applications?
7. Errors: sources of experimentation error (3), suggestions for improving the lab
Format: 12 font, Times New Roman, double-spaced, 1' margins, black ink, Cover-illustrated w/ title of lab (may be in color)
