Materials List:
Water Filtration Project:
Make Your Own Water Filters
https://www.teachengineering.org/activities/view/water_filtration
Make Your Own Water Filters
- 1 liter of water prepared in advance with soil and sand in it until it is thin but relatively opaque
- 3 test tubes prepared with the water standards "A," "B" and "C" (C is filtered through some grass, B is filtered through a coffee filter, and A is filtered through 2 coffee filters with a paper towel in the middle)
- cotton balls
- gauze squares
- tulle/netting
- tissue
- paper towels
- coffee filters
- gravel (aquarium gravel works great)
- sand
- 3 test tubes per student
- test tube racks
- graduated cylinders
- Design Components Worksheet
![](/Images/graphics/Worksheet_FooterJustTE.jpg)