02.03.pdf - Data and Observations Part 1 Bag Content...

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Data and Observations Part 1 Bag Content Initial color of water/iodine solution in the cup Final color of the solution in cup Starch and Water Yellowish Brown Dark Blue Water Yellowish Brown Yellowish Brown Part 2 Substance Potato Pear Contents in cup A: Distilled Water B: ½ tsp sucrose in 1 cup water C: 1 tsp sucrose in 1 cup water D: 2 tsp sucrose in 1 cup water A: Distilled Water B: ½ tsp sucrose in 1 cup water C: 1 tsp sucrose in 1 cup water D: 2 tsp sucrose in 1 cup water Initial cube volume (cm3) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Final cube volume (cm3) 5.42 2.46 0.89 0.13 8.02 3.38 1.11 0.51 Percent Change in volume 442 146 -11 -87 702 238 11 -49 Analysis Questions Part 1 1.Restate your hypothesis and discuss if the observed results supported the hypothesis. I hypothesized that the bag that contained the starch would change color due to the presence of starch as starch reacts with iodine. I also predicted the control without starch would not change color. The results supported my hypothesis. 2.Identify the control and variables in your experiment.
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  • Fall '16
  • Ms. Castro
  • Biology, 1 cup, 1 tsp, 2 tsp, 2.46 0.89 0.13 8.02 3.38 1.11 0.51 Percent

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