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Fine Filters: Filtering Solutions for Clean Water
Version 2. Last updated: February 3, 2008.
This unit focuses on the scarcity of safe drinking water across the world,
some of the science basics of water, how water can be cleaned through a series of
filtration steps, and how nanofiltration can be used as a cost-effective way to solve
filtration problems.
Upon completing this unit, students will understand:
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- A shortage of clean drinking water is one of the most pressing global issues
- As a result of water’s bent shape and polarity, water has unique properties, such
as an ability to dissolve most substances. These properties are responsible for
many important characteristics of nature.
- Pollutants can be separated from water using a variety of filtration methods.
The smaller the particle that is to be separated from a solution, the smaller
the required pore size of the filter and the higher the cost of the process.
- Innovations using nanotechnology to create a new generation of membranes
for water filtration are designed to solve some critical problems in a
cost-effective way that allows for widespread use.
Length: 3 lessons, up to 7 50-minute classroom periods if all lessons are used.
Not all lessons are required. Use the lessons most appropriate for your students.
Materials
This work is licensed under a
Creative Commons Attribution ShareAlike 3.0 United States License.
See Publication Information [PDF] for attribution information.
Download the entire Fine
Filters Unit [PDF] (43 MB) or download individual sections or files below.
Download a zip archive of the Microsoft
Word and PPT source files (52 MB) if you want to adapt the materials
under the Creative Commons license. PowerPoint [PPT] versions of the slides
are also available separately, below.
Front Matter
Download the preliminary pages, including the cover page, copyright and publication
information, and table of contents.
Overview of Unit
Download Teacher materials [PDF]
- For Anyone Planning to Teach Nanoscience...Read This First!
- Fine Filters Overview and Learning Goals
- Unit at a Glance: Suggested Sequencing of Activities
- Alignment of Unit Activities with Learning Goals
- Alignment of Unit Activities with Curriculum Topics
- Fine Filters Pretest/Posttest: Teacher Answer Sheet
Download Student materials [PDF]
- Fine Filters: Pretest
- Fine Filters: Posttest
Lesson 1: The Water Crisis
Enduring Understandings: 1
Download Teacher materials [PDF]
- Introduction to the Water Crisis: Teacher Lesson Plan
- The Water Crisis: PowerPoint
[PPT] Slides & Teacher Notes
- The Water Crisis Student Data Worksheet: Teacher Instructions & Answer Key
- Fine Filters Initial Ideas: Teacher Instructions
- The Water Crisis: Quiz Answer Key
Download Student materials [PDF]
- The Water Crisis: Student Data Worksheet
- Fine Filters Initial Ideas: Student Worksheet
- The Water Crisis: Student Quiz
Lesson 2: Science of Water
Enduring Understanding: 2
Download Teacher materials [PDF]
- Introduction to the Science of Water: Teacher Lesson Plan: Teacher Lesson Plan
- The Science of Water: PowerPoint
[PPT] Slides & Teacher Notes
- The Science of Water Lab Activities: Teacher Instructions
- The Science of Water: Quiz Answer Key
- Reflecting on the Guiding Questions: Teacher Instruction
Download Student materials [PDF]
- The Science of Water Lab Activities: Student Directions
- The Science of Water Lab Activities: Student Worksheets
- The Science of Water: Student Quiz
- Reflecting on the Guiding Questions: Student Worksheet
Lesson 3: Nanofiltration
Enduring Understandings: 3, 4
Download Teacher materials [PDF]
Techer materials
- Nanofiltration: Teacher Lesson Plan
- Nanofiltration: Teacher Reading
- Nanofiltration: PowerPoint
[PPT] Slides & Teacher Notes
- Which Method is Best? Answer Key
- Comparing Nanofilters to Conventional Filters Lab Activity:
Teacher Instructions
- Cleaning Jarny's Water: Teacher Instructions & Rubric
- Reflecting on the Guiding Questions: Teacher Instructions
Download Student materials [PDF]
Student Materials
- The Filtration Spectrum: Student Handout
- Types of Filtration Systems and Their Traits: Student Handout
- Which Method is Best? Student Worksheet
- Comparing Nanofilters to Conventional Filters Lab Activity:
Student Instructions & Worksheet
- Cleaning Jarny's Water: Student Instructions & Report
- New Nano-Membranes: Student Reading
- Reflecting on the Guiding Questions: Student Worksheet
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