Water Filtration Experiment

Ingredients and materials:

• 2 litre clear bottle
• 13 or more cotton balls
• 1 cup of gravel
• 1 cup of sand
• 1/4 of a cup of dye
• 1/4 of a cup of cooking oil
• 2 cups of water
• 20 pieces of styrofoam
• Sharp scissors
• Craft knife
• Bowl

 Instructions:

1. Cut your 2 litre bottle in half with scissors and a craft knife.
2. Take the lid of the top of the bottle and have the top facing downwards in the bottom half.
3. Put 13 or more cotton balls in the top half and push down.
4. Add 1 cup of sand on top of the cotton balls.
5. Next add 1 cup of gravel on top of the sand.
6. After that move on to the dirty water.
7. To make the dirty water get your bowl and add 2 cups of clean water.
8. Next add 1/4 of a cup of dye to the bowl.
9. Put 1/4 of a cup of cooking oil to the bowl.
10. Lastly for the dirty water add 20 pieces of styrofoam.
11.After that add your dirty water to your experiment and watch what happens!