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Worksheetsscience fair
Total questions: 8
Worksheet time: 80secs
Which filter was the most effective in filtering out the salt?
filter paper
paper towel
cloth napkin
Which filter was least affective in filtering out the salt ?
cloth napkin
filter paper
paper towel
What was the unit of measurement to find the purity of the water?
kg
ml
ppm
What was the measuring instrument that we used to find the purity of the water?
ppm counter
TDS meter
Hydrometer
Manometer
Did any of the filters rip while doing the experiment ?
YES
NO
What was the starting ppm when the salt mixture was not filtered in test 1 ?
776.6
792
801.12
781
What was the average ppm when the salt mixture was filtered by the paper towel ?
721
756.64
745.8
720.5
What does PPM stand for ?
parts per minute
particels per minute
parts per million
purity per million
