Water Cycle
When you see your breath
steam fog
What covers 75% of Earth's surface?
Oceans
The most common way for air to be cooled in order that a cloud may form is by
rising and expanding
What are the three solid forms of precipitation we learned about?
Sleet, Hail, Snow
Gray clouds that cover the lower part of the sky; rain or snow falls from them
stratus clouds
If you have a plastic kiddie pool in your back yard filled with water, what will happen to the level of the water after a few days? What step of the water cycle is this?
The water level will go down; Evaporation
Fog that forms in valleys at night.
radiation fog
Why does the air get colder when there is more air pressure (high pressure)?
Colder weather makes air more dense, and that increased weight of the air makes more air pressure.
"Anvil head" is a term applied to
cumulonimbus clouds
How are sleet in hail different in size and when they occur?
Sleet is smaller and usually occurs in winter. Hail is usually larger and usually occurs in summer and during thunderstorms.
White, puffy clouds that look like piles of cotton; they are known as fair-weather clouds
Cumulus
At what stage of the water cycle does water reach the fresh bodies of water?
Precipitation
Fog that forms as air is forced up a mountain
upslope fog
What measures air pressure?
Barometers
Inside of a cloud, how do the air temperature and the dew point compare to one another
they are equal
How is temperature measured? How is humidity measured?
Thermometer and hygrometer
Thin, feathery clouds that appear high in the sky; they are a sign that rain or snow is on the way
Cirrus
How must the temperature be in order for water vapor to condense into water droplets (and form clouds)?
It must be cold enough
This type of fog forms from precipitation
frontal fog
What measures wind speed?
Anemometers
Freezing rain (ice storm) or sleet occurs when
upper air is warm and surface air is cold
What is the freezing point of water in degrees Fahrenheit? Celsius?
32 degrees Fahrenheit, 0 degrees Celsius
What is the name given to the base of a cloud called.
condensation level
There are water drops on the grass early in the morning before the sun comes up. What are they called? Where did they come from? What part of the water cycle is this like?
Dew; The water drops condensed from the water vapor in the air; Condensation
When fog is created with a warm breeze over a cold surface
advection fog
What measures wind direction?
Wind vanes
The cloud droplets in a cloud are formed by water vapor molecules and
condensation nuclei
What forms when water vapor freezes without first becoming liquid?
Frost
This type of cloud forms in stable air.
Stratus