Build a Water Filter

Build a water filter that can clean dirty water.

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Inspiration Video

Suggested Materials

Recommended
  • plastic container
  • large materials like rocks and beans
  • small materials like rice and sand
  • coffee Filters
  • cotton
  • scissors
  • rubber bands
Optional Testing Station
  • water with dirt added to it

Difficulty Level

1
2
3

This design challenge requires simple motor skills, understanding of straightforward concepts, or common materials to build.

This is the difficulty level for a typical 4th grade classroom. Modify as needed for other age groups.