I designed this worksheet for use with the weather channel's website. It takes about 35 minutes for students to complete and is very simple. The idea is that the student chooses any city in the US and answers the questions about their city. If you like, the next day, when you're not in the computer lab, you can have the students use the data and then try to guess one another's regions and cities. I've used this activity with 4th and also 6th graders.