In this lab students will need to have access to a computer that can run "Flash" and the Phet Density Lab worksheet. The worksheet is designed to be pretty self explanatory. I am looking for students abilities to follow written instructions and ability to collaborate with a partner. By the time students get their machines, log on, Google Phet Density, and complete the task it took about 45 minutes for my smaller classes and 50 minutes for the larger ones. This allowed the rest of the time period to discuss key concepts that are explained below.
During the third day of Earth Science class, we discussed the scientific method. I share personal stories of when I fix computers and how I use the scientific method to do so. I start off by talking about clients bringing me a computer that turns on but won't display anything.