Vocabulary
What is a large body of air with the same temperature and humidity throughout?
An air mass
Which tool is used to measure air pressure?
a barometer
What tool would best track weather in remote areas?
A weather monitoring station
What clouds usually form on sunny days, and are white and puffy?
cumulus clouds
The layer of gases that surrounds the Earth is called _______________________.
the atmosphere
The condition of the atmosphere at a certain place and time is ____________.
weather
A weather satellite
The weather in Sam's town has been cool and cloudy for several days. Then, steady rain falls for a day, and the temperature gets warmer. What is the best explanation for this weather pattern?
A warm front has moved through the area.
What type of cloud cover the sky like a thick, gray blanket?
stratus clouds
Which of the following places would air pressure be the HIGHEST?
A. in a cloud
B. on a hilltop
C. on top of a mountain
D. at the bottom of a valley
D. at the bottom of a valley (low elevation, closest to sea level)
Moist and dry can be used to describe the air when talking about which weather related word?
humidity- the amount of water vapor in the atmosphere
Radiosondes measure air temperature, air pressure, and humidity, and can be found on ______________.
weather balloons
Evan watches a weather report on the news. The announcer states that an air mass has formed over a tropical ocean is moving into the area where Evan lives. Which type of weather can Evan expect?
Warm and wet weather (tropical = warm; ocean = wet)
Which clouds usually signal cool, fair weather, and are made of ice crystals?
cirrus clouds
What is the MAIN cause of winds?
differences in air pressure - areas of high air pressure move into areas of low air pressure, causing wind
Carl records wind speed in his neighborhood for five days in a row. What tool does he most likely use to record the weather data?
An anemometer
Radar uses radio waves to detect objects. It works by bouncing waves off objects to determine their location, size, and speed. For what purpose would meteorologists use Doppler radar?
To determine the location of storms
A weather report predicts that it will be a sunny and dry day. What weather condition BEST explains the predicted weather?
A. high precipitation
B. high humidity
C. low air pressure
D. high air pressure
D. high air pressure (dry air is more dense than moist air)
______ is made of small lumps of ice that form after rain falls through a layer of freezing air.
sleet
You are at the beach on a sunny day. There is high humidity and it is very hot. What kind of air pressure are you likely experiencing?
low air pressure
The weight of the atmosphere pushing down on the Earth's surface is known as _________________.
air pressure
Which weather tracking tools might be best in tracking weather conditions for a hurricane?
Weather satellite, weather buoy
Lila observes the sky is covered with a sheet of thick, gray clouds. What kind of weather is most likely to occur?
steady, light rain or snow (stratus clouds)
How does hail form?
Layers form as as air currents repeatedly lift and drop a hail particle during a thunderstorm.
At night, land loses heat more quickly than water. As the air over land cools, it flows towards the less dense air, forming a ________ breeze.
land