Three Beakers Demonstration

 

This demonstration is about precision in measurement. It shows students that the uncertainty in added quantities is the uncertainty in the larger quantity

Three Beakers

Used in Lab:

This demonstration is NOT used in any lab

Equipment:

  • Three differently sized beakers         Location: Demo Rm Rack over East Sink        
  • Water                                                Location: Either demo rm sink or from 201, 202 podium sink.                        

Setup Instructions:

  • Fill the three beakers, talk about uncertainty, pour the liquid to add the volumes, discuss uncertainty.

Apparatus Notes:

You can get a large pan under the sink to pour over, or if demonstration is given in REIC 201 or 212, pour over the podium sink


Safety Information: Keep paper towels nearby, clean any spills to avoid slips.
JHA