| A | B |
| The change in state from a liquid to a gas | evaporation |
| The change in state from a gas to a liquid | condensation |
| Any form of water that falls from clouds to Earth’s surface | precipitation |
| A tool used to measure wind speed | anemometer |
| A tool used to measure air pressure | barometer |
| A tool used to measure the amount of precipitation | rain gauge |
| The amount of moisture in the atmosphere | humidity |
| A tool to measure how hot or cold the air is | thermometer |
| A tool to show the direction the wind is blowing | wind vane |
| The conditions of the atmosphere at a certain place and time | weather |
| The average weather in a place over a long period of time | climate |
| A person who studies and forecasts the weather | meteorologist |