| A | B |
| AIR MASS | Huge body of air that has similar temperature, pressure, and humidity. |
| FRONT | Area where air masses meet (bump into eachother) and do not mix. |
| OCCLUDED | Cut off, as the warm air mass at an occluded front is cut off from the ground by the cooler air beneath it. |
| CYCLONE | Swirling center of low air pressure. |
| ANTICYCLONE | High pressure center of dry air. |
| STORM | Violent disturbance in the atmosphere. |
| LIGHTNING | Sudden spark or energy discharge caused when electrical charges jump between parts of a cloud or between a cloud and the ground. |
| TORNADO | Rapidly swirling funnel-shaped cloud that reaches down from a storm cloud to touch Earth's surface, usually leaving a destructive path. |
| HURRICANE | Tropical storm that has winds of 119km per hour or higher; typically about 600km across. |
| STORM SURGE | Dome of water that sweeps across the coast where a hurricane lands. |
| FLASH FLOOD | Sudden violent flood that occurs within a few hours or even minutes, of a heavy rainstorm. |
| METEOROLOGIST | Scientist who studies the causes of weather and tries to predict it. |
| EL NINO | An event that occurs every 2 to 7 years in the PACIFIC OCEAN, during which winds shift and push warm surface water toward the coast of South America; it can cause dramatic CLIMATE changes! |
| ISOBAR | Line on a map joining places that have the same AIR PRESSURE. |
| ISOTHERM | Line on a map joining places that have the same TEMPERATURE. (Hint: Therm means heat) |