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 - 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:
First tryle-
Sand
Charcoal
Gravel
Cotton balls
Second tryle-
Charcoal
Gravel
Sand
Cotton balls
Explanation - How did it work?
The gravel collected the abounding bits.
The cotton kept the miniscule bits.
The sand held on to the immensed bits.
The charcoal gathered the particles that the other materials couldn't get to.
Why is it important for cities/towns etc to purify and clean the water before it gets to peoples’ homes?
The water should get cleaned before it enters people's homes is because then it doesn't cause flu, diseases, chemicals, bacteria and infections into the human body or any pet body, it also helps catch algae.
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