Weather Tools
What is used to measure temperature
thermometer
The amount of rainfall can be measured using a
rain gauge
These 3 things are all used to predict the weather.
Temperature, humidity and Air pressure
A person who studies, predicts and forecasts weather is called a
meteorologist
Fog is not clouds. True or False
False; Fog are clouds that come low to the ground when it condenses.
How many types of clouds are there
five
What is used to measure wind speed
anemometer
When the air becomes fully saturated at 100% humidity in a high pressure system, we call the resulting condensation _______
fog
Cooler temperatures result in _______ air pressure which leads to fair weather.
high
When air moves from an area of high pressure to an area of low pressure, we experience this movement as
wind
A wind blowing from the East to the West would be named a
Easterly Winds
Towering clouds that are dark on the bottom and indicate intense and serious storms are called _______________ clouds.
cumulonimbus
What is used to measure air pressure
barometer
Meteorologists send a ____________ high up into the atmosphere to record information far above Earth’s surface.
weather balloon
_____________ occur in smaller areas where uneven heating and cooling side-by-side create predictable and steady low-high air pressure cycles of wind.
Local winds
During the night, the opposite cycle occurs in what is called a ____________
land breeze
I am a front indicated by blue flags on a weather map. I am created when a cold air mass aggressively collides into a warm air mass and knocks it up into the air so I can settle underneath. The abrupt disruption I cause in air pressure results in fearsome storms. But once things settle down, I bring nice days of cooler weather. What am I?
Cold Front
_________ clouds blanket the earth in layers and hang around for long periods of time.
Stratus
The amount of water vapor in the air can be measured by a ?
hygrometer
the MOST effective predictor of how weather is about to change is
Air Pressure
Low air pressure is associated with warmer temperatures and _______, ________ weather.
Stormy, Unstable
______________ is the amount of water vapor in the air compared to how much water vapor that temperature air is capable of holding.
Relative humidity
I am a front indicated by alternating red bumps and blue flags on a weather map. I am created when a warm and cold air mass meet up, but neither takes over for the other. You will see days and days of steady rain as I just sit in one place. What am I?
Stationary Front
White, puffy fair weather clouds are known as ____________ clouds.
cumulus
What two things are used to measure the direction the wind is blowing ?
Wind Vane & Wind Sock
Using the words “contracts” and “expands”, explain how a thermometer works:
As the air temperature rises the liquid inside a thermometer expands forcing it to rise higher in the tube. As the air temperature lowers, the liquid inside the thermometer contracts and drops lower in the tube because it needs less space.
Molecules are packed more tightly together in _______ air and are more spread out in ________ air. This means that warm air can hold_______ water vapor before condensing than cool air.
cooler;warmer;more
I am a front indicated by purple flags and bumps on a weather map. I am created when two cold air masses meet up and trap a warm air mass between them. Cumulonimbus and nimbostratus clouds are common at my front line. What am I?
Occluded Front
During the day, clouds protect the earth from the rays of the sun and prevent the earth from____________. At night, the clouds prevent as much ______ from being lost from Earth’s surface.
overheating; heat
I am a front indicated by red bumps on a weather map. I am created when a warm air mass gently rises above and takes over a cold air mass. You might see some showers for a few days at my front line, but then the weather will be nice and warm behind me. What am I?
Warm Front