Sagging Wire

A paper card hands from a wire suspended between 2 points

Concept Overview:

1. Most materials expand upon being heated

Lecturer Procedure

Step(s) to Follow	Expected Result
1. Close main switch. 2. Open switch once heating has been sufficiently demonstrated	The wire will begin to sag - this is obvious as the card in the center will drop.

Step(s) to Follow

Expected Result

1. Close main switch.

2. Open switch once heating has been sufficiently demonstrated

The wire will begin to sag - this is obvious as the card in the center will drop.