Experiment+3

E x p e r i m e n t ﻿3 **﻿** **Hypothesis** - If we repeat experiment 2 with the rest of the foul water, we will be able to combine the previously filtered water and this one and work to make clear water. **What we are going to do** - Putting a coffee filter in a funnel with a layer of sand, rocks, and charcoal, we will be able to produce cleaner water. Then, we will be mixing this semi-clean water with the water from experiment 2 to make all the water clean and clear.

**Materials** 
 *  20mL of sand
 *  1 1/2 teaspoons of charcoal
 *  1 handful of rocks
 *  1 coffee filters
 *  60mL of the contaminated water
 *  1 Erlenmeyer flask
 *  1 Granulated Cylinder
 *  1 Funnel


 * Why we are doing this ** - With our last experiment, we were able to water that was about 95% clean. We figured that since that method worked out so well, we would do it with the rest of the foul water we have to add to the rest of the water and figure out a way to make it 100% clean.

** Fail or Success? ** - Fail
 * We added way too much charcoal which lead us to have black water. We ran the test twice, the second time with no charcoal and we were still left with water that has a gray tint. We ran out of time before we could try to fix the water, so tomorrow we will be trying to think of a way to purify it.