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8/4/2019 Science Final 2011
1/14
How does changing thearrangement of filtering materials
in our filtration bottle effect the
weight of the muddy water?
By Gigi Tse 6C(18), Emily Chui 6C(6) and Michelle Tang 6C(24)
8/4/2019 Science Final 2011
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Abstract
Filtration is very important to our daily life
We used sand and other materials to filter muddy water
We also added activated charcoal
Overall, our experiment is a great success
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Introduction
Our aim is to find out which arrangement is the best
way to filter muddy water.
Filtration has a very long history and it is still improving
from time to time
We think arrangement 1 and 3 are the best arrangement
Filtration is very useful
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Materials
150ml of beans 50ml per arrangement, 150ml of
sand 50ml per arrangement, 210ml of stone 70ml
per arrangement, 600ml of water(200ml per
mixture), 3 pieces of 7x9 filter cotton,1 bottles ofsparkling water(1liter per bottle), activated
charcoal 6 piece, weight scale, 1 bag of soil,
beakers.
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Steps
First we put onebeaker on the
weight scale andset it to 0g
pour 200ml ofwater and addsoil until it is
190.4g
Cut the bottleinto half turn
around the toppart and put
arrangement 1in it
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Steps
Put the top parton to the other
half of thebottle
Pour all themuddy waterinto the filter
and wait until allthe water flows
down
Next, put thebeaker on to theweight scale and
set it to 0g
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Steps
Pour thefiltrated waterto the beakerand put the
beaker on to theweight scale
Wash the bottleplus the
charcoal and dryit
it at last repeatthe whole
progress exceptfor changing
arrangement 1to 2 and 2 to 3
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Variables
We only change the arrangementsof the material inside the filterbottle.
IndependentVariable
Amount of water, soil, and all thematerials in the filter bottleshould be equal.
ControlledVariable
Weight of the soil water beforethe experiment and after theexperiment
DependentVariables
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Results
0
20
40
60
80
100
120
140
160
180
200
Start Before After
Grams Arr. 1
Arr. 2
Arr. 3
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Results
Weight (gram) Milliliters (ml)
Arrangement 1 56g 150ml
Arrangement 2 82.6g 170ml
Arrangement 3 62.6g 150ml
From the results above, we found out that arrangement 1 was
the lightest. Follow by arrangement 3. Arrangement 2 was the
heaviest with 82.6g.
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Conclusion
Why arrangement 2 was the heaviest and the water was
brownish?
Our prediction is correct 1 and 3 is the best arrangement,
there was no sand in the water, also filtrated all the soil.
This whole process worked because of the water particles
which were called molecules.
The mud particles were way bigger than molecules so they
could not get through the gaps and stuck in the filter.
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Suggestions and Evaluation
We didnt have much time, and didnt research much about
filtration. Also, we were not really organized
A television show about water pollution
Next time if we do it again, we will add more alkali in order
to test the PH value.
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Reference
Water Filter Part II. Zoom Activities from the show, 2010.
1st May 2011
http://pbskids.org/zoom/activities/sci/waterfilterpartii.html
.
http://pbskids.org/zoom/activities/sci/waterfilterpartii.htmlhttp://pbskids.org/zoom/activities/sci/waterfilterpartii.html8/4/2019 Science Final 2011
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