The following lesson on wind could serve as a spinning off point for a whole unit of study on weather, or be one of a series of lessons on this topic.
Students learn that wind is created when hot and cold air meet.
This process is observed during two experiments using water and food coloring. Students record their predictions and information they learn in journals. They also discover just how important the wind is in the making of our weather patterns. Tell them that wind plays a very important part in our weather and that we will be learning just why this is so. Show students the materials to be used in the experiment and pose the question of what will happen to the colored water in a warm bottle when it is placed on top of a bottle of cold water.