CONDUCTIVITY LABSetup and Debrief

Tahoma Jr. High8th Grade ScienceMaple Valley, WA

Setup your equipment to looklike the setup below

You will then insert different materials to see if they will “complete” the circuit and

“conduct” electricity or not.

BE GENTLE WITH THE PLASTIC BAGS THEY HAVE GLASS IN THEM!

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MATERIAL Conductor (C) or Insulator (I)or Resistor (R) ?

Rubber (stopper)

Magnesium ribbon (narrow strip)

Wood (Popsicle stick)

Zinc (thick soft strip)

Glass (test tube)

Copper (orange/brown strip)

Plastic (eyedropper)

Paper (piece of your own)

Aluminum strip (shiny thick strip)

Brass (small tube with one end open)

Nickel (Ni plated coin)

Carbon (double headed pencil)

Iron (nail)

C

I

I

I

I

I

C

C

C

C

C

C

R (or “semiconductor”)

will be clock-wise or counter-clockwisedepending on how you set it up

it will be turning in the opposite direction of the other setup (electrons moving in opposite direction)

any metal (copper is most common)

carbon (it resists movement and is now being used as a semiconductor on the atomic level)

http://news.softpedia.com/news/Carbon-the-New-King-in-the-Semiconductor-Industry-74414.shtml

will be clock-wise or counter-clockwisedepending on how you set it up

When finished:

What general type of material makes a good conductor?

____________________METALS !

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