| A | B |
| Weather | The conditions of the atmosphere over a short period of time. |
| Climate | The general weather PATTERNS over a long period of time. |
| Atmosphere | The air surrounding a planet. |
| Air Pressure | The weight of the air pushing on you or another object. |
| Precipitation | The type, phase, or state of water falling from the sky. |
| Temperature | How hot or cold an object is. |
| Wind | The movement of air because of the uneven heating of the Earth. |
| Heat Index | The apparent or "feels like" temperature created by combining hot temperatures with the relative humidity. |
| Wind Chill | The apparent or "feels like" temperature created by combining cold temperatures with wind speed. |
| Humidity | The amount of water in the air. |
| Relative Humidity | The percentage created by comparing the actual humidity with how much water the air can hold at that temperature. |
| Barometer | The tool used to measure air pressure. |
| Rain Gauge | The tool used to measure the amount of precipitation. |
| Thermometer | The tool used to measure temperature. |
| Anemometer | The tool used to measure wind speed. |
| Hygrometer | The tool used to measure relative humidity. |