Water In The Air Flashcards
How does water get from the earth's surface into the air: a) through precipitation B) through condensation C) through evaporation D) through run off
through evaporation
The condition of the atmosphere at a certain time and place called the
Weather
Clouds form in the process of A) precipitation B) evaporation C) condensation D) run off
Condensation
Rain snow sleet and hail are all forms of a) condensation B) evaporation C) precipitation D) run off
Precipitation
Water that flows across land and collects in rivers streams & the ocean is called
Runoff
What is the water cycle? describe the path of water through the cycle
Water goes from land, to air, then falls back to land and repeats
An instrument that measures relative humidity is
Psychrometer
The amount of water vapor in the air compared with the maximum it can hold at a given temperature is
Relative humidity
Air that holds all the water it can add a given temperature is
Saturated
The amount of water vapor in the air is
Humidity
What happens to air’s ability to hold water vapor as the air gets warmer
It increases, it changes as it gets warmer
What is the relative humidity of air that holds all the water it can at a given temperature
The relative humidity changes
What happens to the relative humidity if the amount of water vapor in the air stays the same but the air gets cooler
It changes
Explain how you would use a wetbulb thermometer and a dry bulb thermometer to find the relative humidity
You soak it and see how long it takes to evaporate
The changes state from the gas to liquid is called
Condensation
When air cools to a temperature at which it is saturated the air has reached its
Dew point
Why do water droplets form on the outside of a glass of water
Because water vapor condenses into a liquid
What are two ways in which air can become saturated
When water vapor is added to the air, and when it cools to it’s dewpoint
What is a cloud made of
Tiny droplets of water or snow
What are two ways in which clouds are classified
My form and by altitude
Covers large areas and form in layers
Stratus clouds
Found at high-altitudes & form when the wind is strong
Cirrus clouds
Produce thunderstorms
Cumulonimbus clouds
Have flat bottoms and often indicate Fair weather
Cumulus clouds
Produce continuous rain
Nimbostratus clouds
Prefix for clouds at middle altitudes
Alto-
Prefix for clouds at high altitudes
Cirro-
Water that returns to earth in liquid or solid form is
Precipitation
A water droplet in a cloud becomes rain when it’s diameter increases to how many times its original size
100
How does sleet form
When rain falls through a layer of freezing air
How does snow form
When temperatures are so cold that the water vapor changes directly into a solid
Why can hail become very large and heavy
Because water covers it and it goes up and down over and over
