Today our group made a water filter. First, we had to research on the internet to find out what we needed to find.
This is how we did it :
1. First we cut a Coke bottle in half (Adult supervision)
2.Then we poked 5 holes in the bottom of the coke bottle (Adult supervision)
3.Put in the cotton
4.Tip in some sand
5.Put some mini rocks/gravel
7.Put in some fresh grass
8.Put some more cotton on top... DONE
10.Use a container to get the clean water
11. Do steps 9 and 10 over and over with the same water until it comes out crystal clear
We learnt how to always have clean water, even if our water source is dirty (like if we are stuck in the forest or something!).
We were surprised that charcoal made water crystal clear - we thought it would turn the water black!
We learnt that we needed to put the cotton at the bottom, so that all the dirt and sand wouldn't fall out the holes at the bottom.
We had a lot of fun making our water filter and we learnt a lot. We wish you Good Luck if you decide to make it. Do you think you can make a filter that is as good as, or better than, ours?!
Sam, Alice,Karen and Thomas