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Research Essay

  • Submitted by: itsmefive
  • on February 23, 2013
  • Category: Arts and Music
  • Length: 286 words

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Below is an essay on "Research" from Anti Essays, your source for research papers, essays, and term paper examples.

Comparing the Rate of Mold Growth on Different Breads |
Author(s): Aldo-Rafael Cos | Growth & Development Experiment 
SED 695B; Fall 2005 |
Research Question:Which type of bread grows mold the slowest? | |
Standards addressed:Grade 8:5. Chemical reactions are processes in which atoms are rearranged into different combinations of molecules. 
a.
Students know reactant atoms and molecules interact to form products with different chemical properties. | |
Independent variable | Dependent variables | Controls | Series |
Time (days) | Rate of mold growth  | Temperature, humidity, light | WonderWheatRye |
Materials | Procedures |
Containers, 3 brands of bread. Jewish Rye bread, Wonder Bread (white), Sara Lee Wheat bread, dropper, transparent grid, digital camera |
• Buy materials
• Cut out even portions of bread 
• Place each type of bread in a container
• Put a few drops of water on each bread. Seal container
• Keep containers at room temperature with a moderate light source.
• Observe containers daily. Take photo of each bread.
• Place a transparent grid on photo to measure mold growth
• Calculate the growth per day and record.
• Make graph
• Report on your findings |
  |
|   |
  Day | Wonder Bread | Wheat Bread | Rye Bread |
10/13/05 | | | |
10/15/05 | | | |
10/18/05 | | | |
10/20/05 | | | |
10/23/05 | | | |
10/25/05 | | | |
10/27/05 | | | |
11/01/05 | | | |
  |   |
  |   |
  |   |
Conclusion: The mold grew slowest with the Wonder bread. The other breads grew mold at a much faster rate. This is in part due to the various preservatives added to Wonder bread. Digitally Overlapping Grid on Photos
1. Open your photo using Photoshop Elements.
2. Go to view, and select ruler
3. Go to view and select grid 
4. Hold down shift-apple-4 (for mac)
5. Select the photo and save as a jpg. |
Bread IngredientsWonder Bread:Wheat Bread:Rye Bread: | |
T

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