Fine Filters: Filtering Solutions for Clean Water

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Subject:

Science and Technology

Institution Name:

National Center for Learning and Teaching

Collection:

National Center for Learning and Teaching

Grade Level:

Secondary

Abstract:

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: 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.

Course Type:

Learning Module

Languages:

English

Material Type:

Activities and Labs, Assessments, Curriculum Standards, Lecture Notes, Lesson Plans

Media Format:

Downloadable docs

Conditions of Use:

Creative Commons Attribution 3.0