Humidity Testing

[jmowen at mtu.edu]

My name is Jackie.  I am doing some research at Michigan Tech to help
redesign some of the Introductory Biology labs.  Does anyone know a good
simple way to determine humidity?  Small boards (about 12in x 12in) are
being used in the forest to collect pillbugs.  I need to find a simple
accurate way for the students to determine the humidity between the board
and the ground.  Nay help would be greatly appreciated.  Thank you.



---