Two conditions are required for cloud formation: cooling of the air and _____.
What is the presence of particles in the air?
This is the name of the process by which water vapor enters the atmosphere during the water cycle.
What is precipitation?
The most dangerous aspect of a snowstorm is often the ______.
What is high winds?
What is continental polar air mass?
On newspaper weather maps, colors are often used to indicate this.
What is temperature?
Very high feathery clouds are called ______.
What are cirrus clouds?
Relative humidity can be measured with this.
What is a psychrometer?
Sudden, violent floods that occur shortly after a storm are called this.
What are flash floods?
Weather associated with an anticyclone is generally this.
What is dry and clear?
Small lines at the end of the shaft that represents wind direction on a weather map indicates this.
What is wind speed?
Storms that form within cumulonimbus clouds and produce rain and lightning are called these.
What are thunderstorms?
On average, a snowfall of 20 centimeters would equal a rainfall of ______.
What is 2 centimeters?
A hurricane's storm surge is caused by a combination of high winds and this.
What is low pressure?
At a warm front, warm air meets and moves over or under cold air.
Choose over or under.
What is over?
The collecting of weather data in the last 40 years has been improved mostly by these.
What are balloons and satellites?
Wind speed can be measured with this.
What is an anemometer?
A long period of scarce rainfall or dry weather is called this.
What is a drought?
True or False: Tornadoes form in the same kind of cloud as thunderstorms.
What is true?
The boundary where unlike air masses meet but do not easily mix is called this.
What is a front?
Who are meteorologists?
Describe the difference between local and global winds.
What is local winds are the uneven heating of the Earth's surface within a small area and global winds are the uneven heating of the Earth's surface over a large area?
Describe the difference between humidity and relative humidity.
What is humidity is the measure of the amount of water vapor in the air and relative humidity is percentage of water vapor that is actually in the air compared to the maximum amount of water vapor the air can hold at a particular temperature?
List the four major storms from least to most dangerous.
What are winter storms, thunderstorms, tornados, and hurricanes?
List the four main types of fronts and draw their symbols.
What are cold, warm, stationary, and occluded fronts?
(Teacher will draw symbols on the board)
Explain why weather forecasters are not always accurate.
What is the butterfly effect? In the butterfly effect, a small change in the weather today can cause a larger change in the weather a week later. A small, unpredictable event can cause a large disturbance that throws off a weather forecast.