Water Filter Experiment
Aim/ Purpose -
To filter or clean water using a number of materials
How to clean/filter water - making it clean
Materials -
Sand,
gravel,
activated charcoal,
cotton wool,
plastic bottles cut in half,
bucket of dirty water (can make the water dirty with soil or whatever from outside)
Predictions - What is going to work best? What steps/process and in what order - why?
Cotton wool at the bottom - It will absorb the smaller dirt particles from the dirty water
2nd layer up - gravel - The gravel will grab onto the dirty parts and the clean water will drip off the gravel through the gaps.
Second Layer Up - Charcoal - The second smallest material, can absorb the things not cleared by the bigger materials.
Third Layer Up - Sand - Turns hard when it’s wet - Take all the bigger dirt particles
Top layer - Gravel - All the hugest dirt particles out first.
Method/Steps:
My group put 3 cotton balls at the bottom second we put gravel thirdly we put sand and lastly, we put on activated charcoal and put a cup of dirty water in.
Explanation - How did it work?
When the dirty water was poured in the gravel so the water goes in the small holes and other big dirt particles in the water would get stuck up on the gravel. The water would go through and then go into the sand which would get hardened when wet and would stop the smaller water particles would get stopped there. Now only the dirty water is flowing down and touches the charcoal, the charcoal took out all the really small particles in the water are gone now the dirty water touches the cotton and the cotton drips down the cotton and comes out much more clean. Though the problem in the experiment was we used activated charcoal and that made the water a little bit black so it made the result only a small bit cleaner.
Why is it important for cities/towns etc to purify and clean the water before it gets to peoples’ homes?
It could be bad for their health, they would suffer if they had dirty water. If it is not cleaned things would survive with sickness or die. The thing that will take in the water would become very ill. There can be bacteria, leaves, sticks and other unhealthy/deadly things.
amazing work neelansh great explanation. net time your explanation shorter
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