The labs linked below are in .pdf format and are readable using Adobe Reader. This standard plugin is free over the internet.
Download and read these well in advance of the scheduled lab activity.
I suggest printing only the pages you will be handing in for credit. Save paper.
Use an electronic format in lab to read the instructions for the procedure.
This must be completed to work in lab.
Be certain to adhere to the rules it describes, including shoes, clothing, and eye protection.