science q4 wk4 g5

• • Weather The state of the atmosphere, especially the temperature, humidity, wind, and precipitation.
• Air temperature it refers to the hotness or coldness of the air around you.
• air pressure pressure exerted by the air on the surface of the earth
• wind vane it is used to measure wind direction
• barometer it measures atmospheric pressure
• rain gauge it measures rainfall
• thermometer it measures air temperature
• anemometer it is used to measure wind velocity
• Velocity The speed of the wind toward
• Humidity The amount of water vapor present in the atmosphere at any given time.
• cloud it is the tiny droplets of water that are suspended together with dust particles in the air
• precipitation it is the solid or liquid form of moisture that falls from the atmosphere
• hygrometer measures humidity of air, expressed in percentage
• ceilometer it is a device that uses a laser or other light source to determine the height of a cloud ceiling or a cloud base from the ground
• wind direction - the direction of the air