| A | B |
|---|
| weather | the daily condition of the Earth's atmosphere at a given time in a given place |
| meteorology | the scientific study of the Earth's weather |
| meteorologist | a person who studies the Earth's weather |
| climate | average yearly atmospheric conditions |
| convection | energy transfers by warm air rising then sinking as it cools |
| water vapor | water that is always in the air |
| clouds | form when air cools and water vapor condenses on dust or other nuclei |
| thermometer | weather instument that measures temperature in degrees C or F |
| barometer | weather instument that measures air pressure |
| conduction | a form of energy transfemolecules directly touch to transfer heat energy |
| wind vane | weather instument that measures wind direction measured in compass points |
| anemometer | weather instument that measures wind speed |
| wind | moving air that forms from uneven heating of Earth's surface |
| precipitation | when water vapor/ice crystals get too heavy to stay in a cloud and fall towards Earth |
| atmosphere | the gases around the Earth |
| runoff | water that does not go into the ground and is pulled downward by gravity |
| radiation | direct transfer of energy waves from the sun |
| air pressure | the force of the air pushing in all directions |
| evaporation | when water molecules heat up and spread out until they change from liquid to a gas |
| condensation | when warm water vapor(gas) cools and begins to become liquid |
| Troposphere | the part of Earth's atmoshpere where weather takes place |
| transpiration | evaporation from trees and plants |
