Secret Messages

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In this activity, learners use Teflon (PTFE) tape to write secret messages. Learners may be familiar with Teflon-coated pans, but they probably do not know that Teflon is also made into tape that is used by plumbers. Teflon tape is great for plumbing because it stretches a little and makes a great seal, and since it is slippery, it makes pipes easier to screw together. Learners take advantage of Teflon tape's stretchiness to write secret messages. Use this activity to discuss the various types of polymer structures.

Quick Guide

Preparation Time:
Under 5 minutes
Learning Time:
10 to 30 minutes
Estimated Materials Cost:
$1 - $5 per student
Age Range:
Ages 6 - 18
Resource Type:
Activity
Language:
English

Materials List (per student)

  • PTFE Thread Seal Tape (Teflon tape), any width (can be found in most hardware and plumbing supply stores)
  • ruler
  • ball point pen (these work the best; other pens will work too, but might be smeary)
  • paper
  • scissors

Keywords

Subjects

  • Engineering and Technology
    • Engineering
      • Chemical Engineering
      • Metallurgy and Materials Engineering
  • Physical Sciences
    • Chemistry
      • Chemical Bonding
    • States of Matter
      • Solids
    • Structure and Properties of Matter
      • Atomic Structure

Audience

To use this activity, learners need to:

  • see
  • read
  • touch

Learning styles supported:

  • Involves hands-on or lab activities

Other

Components that are part of this resource:

This resource is part of:

Access Rights:

  • Free access

By:

Rights:

  • All rights reserved, Polymer Science Learning Foundation, 2003