Clouds & Precipitation
How do plants return water vapor to the atmosphere?
What is transpiration?
What are the six weather instruments?
Anemometer, Wind Vane, Thermometer, Barometer, Rain Gauge, Hygrometer
What body of water does El Nino effect?
What is the Pacific Ocean?
Sketch a cold front.
See image.
Which cloud is low to the ground and brings precipitation and fog?
What is stratus?
Which weather instrument measures air pressure?
What is the barometer?
This breeze occurs at night along the coast when the land is cooler than the ocean water.
What is land breeze?
El Nino is the warming of the Pacific Ocean. What severe weather does it create in Central and South America?
Severe rain and flooding in Central and South America.
A front is a _______ between two ___ ______.
A front is a BOUNDARY between two AIR MASSES.
This cloud spans low to high in the sky and brings more severe weather.
What is a cumulonimbus cloud?
Draw the image of a hygrometer.
See illustrations.
Complete this statement:
If altitude increases, air pressure ________.
If temperature ______, air pressure increases.
If humidity decreases, air pressure _________.
If altitude increases, air pressure DECREASES.
If temperature DECREASES, air pressure increases.
If humidity decreases, air pressure INCREASES.
What occurs in the Pacific Ocean which results in a La Nina?
The Pacific Ocean is abnormally cool.
What is an air mass?
What is a large body of air which has the same temperature and humidity?
Students report that the sky in their area has mostly cirrus clouds. What are most likely the weather conditions in the area?
Rainy
Cold
Windy
Fair
What is fair weather?
Which weather instrument measures air temperature?
What kind of weather is present in high pressure air systems?
What is high pressure brings clear skies and sun?
(Remember the image on a barometer!)
Polar Easterlies, Prevailing Westerlies and Trade Winds are all examples of what?
What are global winds?
Explain, how does a cold front differ from a warm front? Must have at least three differences.
Warm front: brings mild precipitation, temperatures will increase, occurs when a warm air mass moves faster (in the same direction) as a cold air mass.
Cumulus cloud is low in the sky, flat on the bottom and fluffy. What is true and what is false?
True: flat on bottom and fluffy.
False: it is in the middle of the sky
The weather instrument which measures precipitation.
What is the rain gauge?
See images.
What is most responsible for the movement of weather systems across the continental USA?
What is the jet stream?
This past weekend in Raleigh we had a weather change.
Weather was sunny and warm. We wore t-shirts! We then had a lot of rain and temperatures dropped the next day and it was sunny. We wore sweaters!
1.Was this a warm front or a cold front? How do you know?
2.After the front passed, was it a high pressure or low pressure day? How do you know?
1. Cold front because it was more severe weather and the temperatures dropped as a result.
2. High pressure because we had clear skies and sunshine!