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?
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, you put 3 cotton balls ate the bottom.
- Next, you sprinkle activated charcoal.
- After we put 1 ½ spoon of sand on the charcoal.
- Fourthly we added 3 big gravel rocks.
- Finally, you pour the dirty water in the bottle and wallah fresh water.
Explanation - How did it work?
When you pour the dirty water into the bottle it will gradually go down to the charcoal and from there the Charcoal takes away all the bacteria and that’s why it ends up clean.
Why is it important for cities/towns etc to purify and clean the water before it gets to peoples’ homes?
So then people don’t get sick and their health won't be sick.
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