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!
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? _________________
Alka seltzer will dissolve fastest in ______________ water, and the slowest in _________ water.
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? ______________________________________
Type of Water Dissolve Time
– in a complete sentence, answer your experimental question by summarizing the data