1580102_Scientific_Method_Lab_Report-Kilbourne_Revised_Q_ADA

Data Table 1-Activity 1: Fill in the data table and submit with the Scientific Method Lab Quiz. Run No. Cup Temp. (˚C) Time (sec.) Observations 1 C 9 127 I expected a faster solution 1 RT 23 45 There was an immediate fizzing reaction 1 H 50 11 Quickly dissolution 2 C 8 120 The tablet might take slightly longer to completely dissolve. 2 RT 24 52 It took a little longer to dissolve 2 H 48 16 Formation of steam along with bubbling 3 C 7 117 Slow dissolution 3 RT 26 43 There was cloudiness but less than the initial trial 3 H 51 10 Clearer water due to fast dissolution Avg. C 8 120.3 Took longer to dissolve Avg. RT 24 46.33 Notice that RT created more clouds Avg. H 50 12 Fastest to dissolve the tablet 1. Using graphing software such as Excel®, graph the results of Activity 1. Please see the Introduction to Graphing manual for guidance. Copy and paste your graph here. C RT H C RT H C RT H C RT H 1 1 1 2 2 2 3 3 3 Avg. Avg. Avg. 0 20 40 60 80 100 120 140 Chart Title Temp. (˚C) Time (sec.)

1 Activity 2 Table (Testing the New Hypothesis) State the hypothesis. The longer it takes for the tablet to dissolve, the higher the temperature. Identify the independent variable. Temperature Identify the dependent variable. Amount of the time it takes for the tablet dissolve. List the controlled variables. 200ml of water, same container, and amount of tablet. How will the dependent variable be measured? On a cellphone stopwatch If the hypothesis is true, what results are expected? The tablet that is submerged in hot water will dissolve the fastest, whereas the tablet that is submerged in cold water will dissolve the slowest. Data Table 2 (Testing the New Hypothesis) Run No. Manipulated Variable Time (sec.) Observations 1 Quarter Alka-Seltzer 20 Fast reaction 1 Quarter Alka-Seltzer 22 Quick solution 1 Quarter Alka-Seltzer 24 Not a lot of bubbles 2 Two quarter Alka-Seltzer 45 Effervescence 2 Two quarter Alka-Seltzer 48 Fizzing was shown more than the others 2 Two quarter Alka-Seltzer 46 When the tablet touched the water, the solution was a little slow 3 Three quarter Alka-Seltzer 66 Separation affected in the time to dissolve 3 Three quarter Alka-Seltzer 67 Slow fizz 3 Three quarter 61 A lot of bubbling © 2016 Carolina Biological Supply Company