Home : 2005 : February : 13
science fair
By Cindy Hammonds
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We are having our science fair next week. Our first grade teacher did an easy experiment on bubbles. She had each student make their home made "wands" from pipe cleaners. Then she made 3 different solutions to test. 1. dish soap and water, 2. glycerine, dish soap, and water 3.glycerine and water. She labeled each of the "variables" a b c. Students tested each by dipping and blowing each variable 3 times and "measured" each bubble with a point system.
1pt- bubble pops immediately
2pt-it begins to float
3pt-it floats awayThey record (parent help needed) on a simple log.
Total up the | |
scores for each and come up with a conclusion.example Variable A -Scores 1,1,2=4pt
Variable B -Scores 2,1,3=6pt
Variable C -Scores 3,3,1=7pt Be sure to have the students guess first which one they think will work. Do the experiment, then record the findings. They love it
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