lesson 1
How does altitude affect air pressure
as altitude in creased, the air pressure decreases
the measure of water vapor in the air
humidity
What is the boundary between where two air masses meet?
A front
How are occluded fronts represented on a weather map
purple lines with triangles and semicircles in the direction they are traveling
What is a storm?
A violent disturbance in the atmosphere
This layer protects earth form most meteoroids. Temperature decreases as altitude increases
Mesosphere
Classify the different types of precipitation according to their states of matter.
Rain and freezing rain are liquids. sleet, snow, and hail are solids
What do all the fronts have in common?
They are all created by the interaction of warm and cold air masses
how are warm fronts represented on a weather map
red lines with semi circles pointed in the direction they are traveling
How is a winter storm different from other types of storms? (be weather specific)
Winter storms are associated with cooler temperatures and snow, ice, sleet
Where the earth's weather happens. closest to the surface. Contains 80% of the atmosphere, temperature decrease quickly as altitude increases
Troposphere
Name and describe the process of plants releasing water into the atmosphere
Transpiration- plants roots soak water from the soil and release water vapor through their leaves
What types of air masses affect the weather in North America and describe them.
Continental Polar (cold, dry), Continental Tropical (hot, dry), Maritime Polar (cool moist), Maritime Tropical (warm, moist)
how are cold fronts represented on a weather map
Blue lines with triangles pointing in the area they are traveling
What type of storm is associated with the “lake effect”?
Winter storms
The upper most layer of the atmosphere, lowest air density. The boundary between earth and space. Radiation from the sun is absorbed here.
Thermosphere
What role does ground temperature play in determining the variety of precipitation?
If the ground temperature is at or below freezing, it can change precipitation from a liquid to a solid. Freeze rain into ice
How do cyclones and anticyclones differ?
Cyclones are areas of low pressure, with winds spiraling into the center. Anticyclones are areas of high pressure with winds spiraling out from the center.
What does an isobar show on a weather map?
Areas of equal air pressure
Why don’t hurricanes form in the oceans in northern latitudes of the world?
Hurricanes need warm, moist air to fuel in. Cold ocean waters do not provide enough energy for powerful cyclones to occur
Contains earth's ozone layer. This layer absorbs ultraviolet radiation from the sun and heats up molecules in the air. As altitude increases, temperature increases
Stratosphere
What role does energy play in the water cycle?
Energy from the sun heats molecules in bodies of water, causing water molecules to gain energy and be releases into the atmosphere
What type of weather does each front bring?
Cold fronts bring heavy rain and thunderstorms with strong winds. Warm fronts bring warm, humid rain. Occluded fronts cooler weather and rain or snow. Stationary fronts bring many days of clouds and light precipitation.
What do you think it means to synthesize a chemical?
to combine substances to make a chemical
What are 4 types of severe weather?
Thunderstorms, winter storms (blizzards), tornadoes, and hurricanes
Why is the atmosphere heated unqueenly by the sun?
Because of earth's tilt
Break down the water cycle
The water cycle describes how water evaporates from the earth surface, rises into the atmosphere, cools and condenses into rain or snow in clouds, and falls again to the surface as precipitation
Describe the 4 different types of Fronts.
Cold fronts form when a cold air mass runs into a warm air mass, pushing up the warm air quickly. Warm fronts form when a fast moving warm air mass overtakes a slower moving cold air mass. Occluded fronts form when a warm air mass gets caught between two cold air masses. Stationary fronts form when cold and warm air masses meet, but neither one can move the other.
A person who collects and analyzes weather data and uses the results to make weather forecasts.
Meteorologists
what is the difference between an approximate and the exact number?
An approximate number is close to, but not the exact or actual number