the average of weather conditions in an area through all seasons over a period of time
winds that blow constantly fromt he same direction and do not change much from year to year. Keeps the climate fairly stable.
Short term condition of weather which makes weather quite different from its usual pattern
The climate is changing how often?
All the time, constantly
the climate of a very small area
What may change local winds?
new building or parking lot being built in an area
Large climate change takes how long?
A long time.
Global Warming can cause...
the polar ice caps to melt
What is believed to be happening because of too much carbon dioxide?
green house offect
when excess carbon dioxide absorbs some of the heat given off by the Earth
Almost all weather occurs where?
In the Atmosphere, the lowest layer of the air.
sun heats the oceans and the water turns into vapor
water vapor is pushed upwards into the cool air, turning back into liquid drops of water;
What causes clouds to form?
due to humidity, the droplets in clouds come together and gravity pulls them down (rain or snow)
What can be predicted when the surrounding air pressure drops?
rain or snow
What is measured or observed by weather forecasters?
temperature, humidity, wind speed and direction
Name4 types of clouds;
cirrrus, cumulus, stratus,, cumulonimbus
Wind blows toward the land from the water, when?
during the day
wind blows toward the sea from the land, when?
during the evening
What factors make it difficult to predict local weather conditions?
bodies of water, buildings, pavements; making it difficult to measure all the weather factors
What would you expect the temperate zone to do if Earth went through another ice age?
it would reduce in size
What would be enlarged during another ice age?
The polar zone; ice and snow would cover more of the Earh's surface
What human activities can can cause temperatures to increase?
building cities, burning fossil fuels
Increasing carbon dioxide causes temperatures to do what?
What easily moves over the globe, affecting the entire planet?
prevailing winds, heated air and pollutants