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Line of Resistance

 

This presentation is a product of the University of Wisconsin Institute for Chemical Education. Included in your kit is a presentation manual with directions. For further information please check here.

 

 

Included in your kit is a manual with 10-easy-to-do experiments! Also included:

 

Graphite Pencil

Eraser Shield

1000 Ohm Resistor

Piezoelectric Gas Ignitor

AF Heat Wire

Line of Resistance Manual

 

Some examples are below.

(Note: A multimeter is required but not provided in your kit.)

 

 

Example 1: Electrical resistivity of graphite.

 

 

This test is run by drawing a line with a graphite pencil.

 

 

Next the line is measured with a multimeter. It is simple and fun!

 

 

Example 2: Electrical resistivity of a wire.

 

 

Example 3: Testing the resistance of a resistor.

 

 

Example 4: A piezoelectric ignitor is used to demonstrate how lightning rods work!

Line of Resistance

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This presentation meets the following California Science Standards:

Physical Science

  • K–4: Properties of materials can be observed, measured, and predicted
  • 5–8: Structure and properties of matter
  • 5–8: Physical principles underlie biological structures and functions
  • 9–12: Atomic and molecular structure
  • 9–12: Motions and forces
  • 9–12: Electric and Magnetic Phenomena

Investigation and Experimentation

  • K–4: Scientific progress is made by asking meaningful questions
  • 5–8: Ability to conduct scientific inquiry
  • 9–12: Formulate explanations by using logic and evidence

Technical and educational staff services are possible through the generosity of the National Science Foundation through support via the NNIN.