Filtration

Hi,
Today I am going to tell you about what we have done in science. First we were splite into three groups after that we have to get the bottle that is cutted in half and the other half is turned upside down and put it into the other half of the bottle. After that we have to put the filter paper that's form into circle then you fold it into half after that you fold it into half again then you form it into a cone shape after that we have to put it inside the bottle. Then after it we will put the sand inside the filter paper to make the perfect way to filter the dirty water. Then we will put the tiny rocks at the top of the sand the you will put the dirty water inside the bottle. So here is the photo of the experiment that we have done.

Examples are:

1. Kidney
2.  Swimming pool
3.  Coffee filter
4. Tea bag

Materials

1.Plastic bottle 

2. Sand

3. Rocks 

4. Filter Paper

5. Dirty water

6.Scissors 

7.Funnel

8.Pebbles

Process - ( use verbs or doing words in each step )

Step 1

Cut the bottle in half

Step 2

Put the top half upside down in the other half of the bottle

STEP 3

Add layers of  Filter paper, Sand and Rocks.

STEP 4

Get 1 cup of dirty water that has sand and oil and coffee 

STEP 5

Pour dirty water into the the bottle

So in our group when we did the filtration experiment it did not clean the dirty water that well. So maybe next time we could add some more sand and put them properly and also the rocks.