Aim
I want to investigate how to filter dirty water and make it safe to drink.

Hypothesis
No hypothesis needed.

Equipment

• dirty contaminated water
• 3x funnels
• stand
• 3x clamps
• pebbles
• sand
• cotton
• charcoal
• paper towel
• Bunsen Burner

Method   Set up the funnels in a line on the stand using clamp to hold them in place. 2. In the top funnel, put a small wad of cotton and then fill with small pebbles.
3. In the middle funnel put a small wad of cotton and then fill with sand.
4. In the bottom funnel put a small wad of cotton and then fill with charcoal.
5. Place a cup under the bottom funnel to catch the water.
6. Pour the dirty water into the top funnel, be careful not to overfill the funnel.
7. Boil the filtrate (filtered water) for 2 minutes and let cool.

Variables
No variables needed

Results

We never tried the  water because it didn't  look very  clean  the water  looked  like  the  color  of  fog