"People are always talking about the weather. We want to know if it will be warm or cold, sunny or rainy. This helps us decide what to wear. It also helps us plan what to do. Another reason we talk about the weather is because it is always changing. It can be sunny when we wake up but pouring down rain by lunch time. People who study the weather are called meteorologists. One of the most important things meteorologists study is weather fronts. A weather...