Station 1: Enzymes and Temperature Station 2: Enzymes and pH Procedure: Procedure: Label three depressions A, B, C Label three depressions A, B, C Place SIX drops of iced yeast solution in depression A. Place FOUR drops of yeast solution in depression A, B, C. Place SIX drops of room temperature solution in depression B. Place TWO drops of vinegar (acid) in depression A. Place SIX drops of boiled yeast solution in depression C. Place TWO drops of water in depression B. Now quickly place about 3 drops of H2O2 in each depression. Place TWO drops of baking soda water (base) in depression C. Carefully observe each depression. Now quickly place about 3 drops of H2O2 in each depression. Record the reaction time and bubble rating for each. Carefully observe each depression. If the reaction lasts longer than 1 minute, write “>1”. Record the reaction time and bubble rating for each. If the reaction lasts longer than 1 minute, write “>1”. Data Table 1 Data Table 2 Complete Time Bubble Rating Depression for reaction (0-10) Complete Time Bubble Rating Depression for reaction (0-10) A. iced A. acid B. room temp. B. neutral C. boiled C. base Bar Graph 1: Graph the Bubble Rating for each solution Bar Graph 2: Graph the Bubble Rating for each solution 10 10 9 9 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 iced room boiled acid neutral base
Station 1: Enzymes and Temperature Procedure: Label three depressions A, B, C Place SIX drops of iced yeast solution in depression A. Place SIX drops of room temperature solution in depression B. Place SIX drops of boiled yeast solution in depression C. Now quickly place about 3 drops of H2O2 in each depression. Carefully observe each depression. Record the reaction time and bubble rating for each. If the reaction lasts longer than 1 minute, write “>1”. Data Table 1 Depression Complete Time for reaction Bubble Rating (0-10) A. iced B. room temp. C. boiled Bar Graph 1: Graph the Bubble Rating for each solution 10 9 8 7 6 5 4 3 2 1 iced room boiled Station 2: Enzymes and pH Procedure: Label three depressions A, B, C Place FOUR drops of yeast solution in depression A, B, C. Place TWO drops of vinegar (acid) in depression A. Place TWO drops of water in depression B. Place TWO drops of baking soda water (base) in depression C. Now quickly place about 3 drops of H2O2 in each depression. Carefully observe each depression. Record the reaction time and bubble rating for each. If the reaction lasts longer than 1 minute, write “>1”. Data Table 2 Depression Complete Time for reaction Bubble Rating (0-10) A. acid B. neutral C. base Bar Graph 2: Graph the Bubble Rating for each solution 10 9 8 7 6 5 4 3 2 1 acid neutral base
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