After having graded your labs I have some suggestions for future labs: * never write down a measurement without its attached units * show work (including on percent difference calculations) * clearly label all axes of graphs * if your percent difference comes out large go back and re-examine your measurements and calculations * percent difference is meant to indicate the accuracy of your measurements and there is _always_ some error or uncertainty, so don't record 0% as your difference; instead, if it first seems to be 0%, use some other method to estimate the error (by, for example, using the number of significant digits to give an estimate of the error). * general neatness and clarity are very important * make sure you have gone through the lab skills menu of the HelpWare. Many of your lab write-ups have been quite good. Keep up the good work. Hopefully these suggestions will allow you to do even better. Thanks, Larry