Weather and Climate

Vocabulary*weather*climate*evaporation*condensation*precipitation*runoff*clouds*air pressure*temperature*wind*density

*humidity*air masses*air pressure*front*wind direction*wind speed *trends*climate record

Weather vs. Climate

VocabularyWeather-daily or

hourly changes in the climate.Climate-usual

weather in a long period of time in a place.

• Climate is the usual weather so it affects every day weather

• North Carolina has a subtropical climate. There are many different types of climates such as tropical ,polar and desert.

Water Cycle

Weather

The water cycle and weather

Water is necessary to all life on Earth.Every part of the water cycle influencesWeather. The water cycle controls the Distribution of water on earth and in theatmosphere. Clouds and precipitationAre evidence of water moving through The water cycle.

The water cycle and climateThe water cycle also shapes climates around the world. Precipitation or water in that falls from the clouds is one of the ways people classify climate .The average precipitationIn a region tells us what type of climate it . The water cycle creates reservoirs to store water . The Ocean is a good example .

ocean

Weather patterns

FRONTAL BOUNDARIES Vocabulary Air Masses-a large

body of air with only small horizontal variations of temperature, air pressure and moisture.

Front-the interface between air masses of different temperatures or densities .

Changes in the weather happen as different air masses move through a region. Something you may not realize is that fronts not only extend in the horizontal direction but in the vertical as well.

Warm fronts and Cold fronts

Warm front A warm front is the

transition zone where a warm air mass is replacing a warmer air mass . On a weather map a warm front is represented by a solid line with triangles point to the warmer air.

Cold Front

Is the transition where a cold air mass is replacing a warmer air mass. On a weather map a cold front is represented by a solid line with semi-circles.

Warm fronts and cold fronts

Weather Map

TemperatureTemperature

Temperature tells us if the air is warm or cold. Density is the amount of matter in an object. The

density of the air depends of it temperature. Temperature is influenced by cloud cover.

AIR PRESSURE

Air pressure is the weight of the air above the Earth's surface.

High pressure occurs when the air pressure is greater than the surrounding area. High pressure usually means dry weather and cooler temperatures. Low pressure occurs

when the air pressure is lower than surrounding areas. Low pressure usually

means wet weather and warmer weather.

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Did you know tornadoes are edible?

Wind

CloudsClouds are water droplets or ice crystals in the air .

They play a major role in weather. They have an influence in the temperature and bring different

types of precipitation . The four different types of precipitation are rain,snow,sleet and hail . Clouds

commonly form at frontal boundaries and around areas of low pressure .Clouds also block

radiation form the Sun. This influences temperatures.

Types of precipitation

Precipitation

Precipitation is a solid or liquid water that falls from a cloud tothe surface of the earth. Precipitation is likely when two differentair masses meet at a frontal boundary. High humidity also increaseschance of precipitation .

Weather data builds climate records

Weather builds climate records

Scientists need a lot of data to predict weather. Trends are patterns in weather . They show consistent changes in the weather . This makesforecasting easier. Trends in weather tell us about climate. A climateRecord is a historical record of weather data for a specific region.

Test

1.What is the amount of water vapor in the aircalled?A heatB temperature]C humidityD condensation2. What type of climate does North Carolina have?A polar B subtropical C tropical D desert

Test

3. When humidity is high it increases the Chance of:

a) snowb) low temperaturec) thunderstormsd) light rain