Water Filter
Practice using the engineering design process to design, build and test a water filter.
In this activity, you will make your own water filter
Objectives:
- To practice the design process that scientists and engineers do
- To increase ability to predict, observe, question, design and redesign
- To better articulate how engineers can help make the world a better place
Materials:
For the discussion:
- Handout – Water Filter Design Notes
To make the water filters:
- 2 liter plastic soda bottles
- Gravel
- Sand
- Sponges
- Paper coffee filters
- Paper clips
- Straws
- Cotton balls
- Rubber bands
- Tape (electrical or duct)
- Panty hose
- Clay or putty
- Cotton batting
- Cheesecloth, mesh, or some other fabric with large porous holes
- Scissors