This is an online activity for all things weather. The activities are scaffold lessons that can be used in high school weather units. I even used some of the activities as an online weather test. It is a very good resource covering many topics including clouds, wind, air masses & fronts, and weather forecasting. There are also classroom activities along with individual activities for students to work through. As students go through the lessons there are links to take students to the information needed to help them answer the questions.