| A | B |
|---|
| Air pressure | I'm the force of air molecules pushing on an area. |
| Density | A measure of the amount of matter packed into a unit volume |
| Mass | The amount of matter in an object |
| Barometer | I'm any instrument that measures air pressure. |
| Weather | I'm the condition of Earth's atmosphere at a particular time and place. |
| Wind | I'm the horizontal movement of air. |
| Global wind | I travel thousands of kilometers in steady patterns. |
| Coriolis effect | I'm the influence of Earth's rotation, causing winds that travel a long distance to curve. |
| Jet stream | I usually flow in the upper troposphere from west to east for thousands of kilometers. |
| Monsoon | I'm wind that changes direction with the seasons. |
| Evaporation | I'm the process by which liquid changes into gas. |
| Condensation | I'm the process by which a gas changes into a liquid. |
| Precipitation | I'm any type of liquid or solid water that falls to Earth's surface. |
| Humidity | I'm the amount of water vapor in the air. |
| Saturation | I'm the point at which the rates of evaporation and condensation are equal. |
| Relative humidity | I tell us how close air is to saturation |
| Dew Point | I'm the temperature at which air reaches saturation. |
| Acid rain | I'm rain that is affected by pollution and harms trees and lakes. |
| Hail | I'm the lumps or balls of ice that fall from |
| Sleet | I'm the small pellets of ice that form when rain passes through a layer of cold air. |
| Freezing Rain | I'm the raindrops that cover surfaces with a coating of ice. |
| Air pressure | The force of air molecules pushing on an area |
| Barometer | any instrument that measures air pressure |
| Weather | The condition of Earth's atmosphere at a particular time and place |
| Wind | Air that moves horizontally, or parallel to the ground. |
| Global Winds | Travel thousands of kilometers in steady patterns |
| Coriolis Effect | The influence of Earth's rotation |
| Jet Stream | A wind that flows in the upper trophosphere from west to east over vast distances at great speeds |
| Monsoons | A wind that changes direction with the seasons |
| Evaporation | A process by which a liquid changes into a gas |
| Condensation | A process by which a gas changes into a liquid |
| Precipitation | Any type of liquid or solid water that falls to Earth's surface |
| Humidity | The amount of water vapor in air |
| Saturation | A condition of the atmosphere in which the rates of evaporation and condensation are equal |
| Relative Humidity | Compares the amount of water vapor in air with the maximum amount of water vapor that can be presented at that temperature |
| Dew Point | The temperature at which air with a given amount of water vapor will reach saturation |
| Acid Rain | Rain that has become more acidic than normal due to pollution |
