The Scientific Method - Plop Plop Fizz Fizz
Any effeversent tablet will work for this experiment, you can even use denture cleaners, or fizzy tablets.
In this lab, you will develop and test a hypothesis, analyze data and draw conclusions.
You are given guidance at each step of the way. Fill out this form completely - do not skip steps!
Step 1: Question or Observation
Question: What factors will make an alka-seltzer tablet dissolve faster?
Variables to test:
.....Tap water, Warm water, Cold water, Salt Water, Acidic water (using vinegar)
Of the variables above, which should serve as your CONTROL group? _________________
In this experiment, the independent variable is the type of water (warm, salt..etc). What is the responding variable, or the thing you will be measuring? __________________________
Step 2: Develop a hypothesis. Finish this statement…
Alka seltzer will dissolve fastest in ___________ water, and the slowest in _________ water.
Step 3: Design and Conduct and Experiment
Answer these questions regarding your experimental design:
A) Will you use a whole tablet or a half a tablet of alka seltzer? _______________
B) How will you measure how quickly it dissolves? _______________________________
C) How much water will you place in your beakers? ______________________________
Will this amount be the same in all of your tests? _______________
D) What safety precautions should you take? ______________________________________
Step 4: Create a table to record your results.
| Type of Water | Dissolve Time |
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Step 5: Draw Conclusions – in a complete sentence, answer your experimental question by summarizing the data