Does your shirt hate water? In the activity, future engineers observe the hydrophobic effect in fabrics. They brainstorm and test some ideas for waterproofing fabrics.

Concepts

nanotechnology, hydrophobia, properties of water, engineering design, technology resources

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Additional Tags

hydrophobic effect, nano waterproofing, waterproofing

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Instructional Ideas

• Use the extension idea as an extra credit assignment

Classroom Considerations

• Some specialized fabric is necessary for the activity
• It is helpful if learners have some basic knowledge of nanotechnology

Pros

• Has an optional model-making activity
• Includes printable student worksheets

Cons

• Information in the teacher guide is somewhat repetitive