Weather and climate: you may be tempted to think they're one in the same, but there are some important differences. Weather tells you what to wear each day; climate tells you what to have in your closet.
The Earth is surrounded by an envelope of air known as the atmosphere. You can't really see it or feel it. We probably take for granted that it is even there at all, but the pool of air above us is about 60 miles high and is always pushing down on us. This is where we get air pressure.
The eruption of the Kilauea volcano on Hawaii's Big Island has created some incredible images and video. First Alert meteorologist Pierce Legeion demonstrates the science behind a volcano in this week's weather school.