Home > Filtration Investigation

Filtration Investigation

Bookmark and Share
Lesson Focus 
Lesson focuses on how filtration systems solve many problems throughout the world such as improving drinking water. Through this lesson, students work in teams to design and build a filtration system to remove dirt from water. Students select from everyday items to build their filter, test the resulting system evaluate the effectiveness of their filters and those of other teams, and present their findings to the class.
Download Full Lesson Plan PDF
Download Text Version of WorksheetDownload Student Worksheets RTF
Lesson Synopsis 
The "Filtration Investigation" lesson explores how engineering has developed various means to remove impurities from water. Students work in teams of "engineers" to design and build their own "filtration system" out of everyday items. Working with "muddy" water, students develop a design, and then build and test a system to remove as much impurities from the water as possible. Students view their own tests and those of other student team, evaluate their results, and present findings to the class. The group with the clearest "filtered" water is considered to have developed the best filter system.

Age Levels:


  • Learn about engineering design.
  • Learn about planning and construction.
  • Learn about teamwork and working in groups.
Anticipated Learner Outcomes 

As a result of this activity, students should develop an understanding of:

  • engineering design
  • problem solving
  • teamwork

Lesson Activities

Students learn how filtrations systems are of many sorts for many purposes. Students work in teams to design and build a filtration system out of everyday items that can remove the most "dirt" or sediment from water. They then test their filters and those of other student teams, determine the filter design that was the most effective in the class, evaluate their own results and those of other students, and present their findings to the class.


  • Teacher Resource Documents (attached)
  • Student Worksheets (attached)
  • Student Resource Sheets (attached)

Alignment to Curriculum Frameworks

Curriculum alignment sheet is included in PDF.

comments powered by Disqus