weather

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 * || == Weather Wise ==

** The Elements of Weather **
|| **Understanding Basic Concepts** - explain the difference between weather and climate and the factors that influence both of these systems - identify patterns in air movement - identify the effects of air pressure ||

What is Weather?
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1. Define weather.Weather is the condition of the atmosphere at a particular time and place. 2. What four factors affect weather. The air, The sun, water, and the Earths movement.

Weather vs Climate
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3. What is the difference between climate and weather? Weather is a condition over a short period of time.Climate is thesum or synthesis of all the weather in a long period of time.

Air Pressure
__ [] __ 4. Complete the following chart:


 * || ==== **High Pressure** ==== || ====** Low Pressure **==== ||
 * Air movement (up or down) || down || ​ up ||
 *  Temperature of air  || sunny || cloudy ||
 * Wind movement at ground || .clockwise || counter clockwise ||
 * Expected weather || .sunny skys || cloudy skys ||


 * || == Weather Wise ==

** Measuring the Weather **
|| **Developing Skills of Inquiry, Design and Communication** - design, construct, and test a variety of weather instruments - use appropriate vocabulary, including correct science and technology terminology, in describing their investigations and observations ||

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 * The following web site describes some of the instruments meteorologists use to collect data about the weather. **

Use the information to complete the chart. The source of this information is American so you may have to determine the equivalent metric unit to record in the chart.


 * ** Instrument Name ** || ** What It Measures ** || ** Unit of Measurement ** ||
 * .** Barometer ** || ** measures atmospheric pressure ** || ** Millibars ** ||
 * .** Thermometer ** || ** measures the temperature ** || .** Celsius or degrees Fahrenheit ** ||
 * .** Rain gauge ** || ** measures the amount of rainfall ** || ** mm ** ||
 * .** Campbell Stokes Recorder ** || **measures sunshine ** || hours ||
 * .** Anemometer ** || ** measures wind speed ** || ** mph ** ||
 * .** Wind Vane ** || ** measures wind direction ** || ** measures by pointing towards North, East, South or West ** ||
 * ** Hygrometer ** || ** measures the temperature and amount of humidity ** || ** degrees Fahrenheit and degrees Celsius ** ||
 * || == Weather Wise ==

** Clouds **
|| **Understanding Basic Concepts** - explain the formation of clouds and the effects of different cloud formations on weather and climate ||


 * Use this web site to answer the following questions. **
 * [] **

1. What are clouds?

2. Explain how clouds form.** Clouds form when air cools below its saturation point and causes water vapor to condense into tiny water droplets. ** 3. What are the 3 "families" of clouds and what do their Latin names mean?** There are three families of clouds: cirrus, cumulus, and stratus. These are the latin names given to clouds in 1804. Cirrus means 'curl of hair', cumulus means 'heap', and stratus means 'layer' ** 4. Follow the links to learn about each type of cloud and then complete the table on the next page. To help you identify clouds, download, print and construct the following "Cloud Key". [] After completing the chart, you could try a Cloud Quiz at; [] 
 * || ==Weather Wise==

**Forecasting**
|| **Understanding Basic Concepts** -recognize large-scale and local weather systems - predict local weather patterns using data from their own observations of weather and from weather reports - identify patterns in air movement ||

The following questions and organizers will help you keep track of the crucial information you’ll need.
 * Read the details at [] and follow the links.**

Cloud Forecasting

 * **Cloud Type** || **Description** || **Possible Weather** ||
 * cirrus || Cirrus clouds are thin and wispy, and are found very high in the skydirection the wind is blowing || No precipitation falls from cirrus clouds. They are a sign of fair weather for now and the very near future. ||
 * altocumulus || These clouds are like fuzzy bubbles in long rows or strings || If you see altocumulus clouds, it usually means that a cold front is coming. ||
 * nimbostratus || These clouds are dark and low-hanging clouds that cover the whole sky || They bring with them light to moderate precipitation. ||
 * cumulus || These clouds look like big cotton balls in the sky || Normally they don't carry any rain, but during the spring and summer they can change into cumulonimbus clouds. ||
 * cumulonimbus || They are tall and wide clouds that have heavy rain, thunder and lightning || If you see these clouds on the horizon, it is likely it will rain very soon. ||

Wind Forecasting
What can make the above predictions inaccurate?
 * **Wind Direction** || **Possible Weather** ||
 * North ||  |||| First, know which direction is north from where you're standing. Use a compass to help you find north. When you find north, turn and face that direction. The direction behind you will be south. To your left is the direction west, and to your right will be the direction east. Then see what direction the wind is coming from. ||   ||
 * South ||  ||||   ||   ||
 * If the wind is coming from the south, usually it means that warmer weather is on its way soon. If the wind is coming from the north, usually it means that cooler and dryer weather is on the way. East or west moving winds can mean a variety of things, which makes it difficult to forecast using them. ||  ||
 * East ||  ||||   ||   ||
 * East moving winds can mean a variety of things, which makes it difficult to forecast using them. ||  ||
 * West ||  ||||   ||   ||
 * West moving winds can mean a variety of things, which makes it difficult to forecast using them. ||  ||
 * West moving winds can mean a variety of things, which makes it difficult to forecast using them. ||  ||

Senses Forecasting
What might you hear that can help you forecast the weather?
 * == Weather Wise ==

**Warm and Cold Fronts **
|| **Understanding Basic Concepts** - explain the difference between warm and cold fronts and the factors that influence both of these systems - identify types of weather associated with each front || []

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Write the capital letter A or B at the end each sentence. A = Cold Front B = Warm Front Not completed 1. Cool air mass - warm air mass moves in. 2. Warm air mass - cool air mass moves in. 3. Brings gentle rains that may last for hours or days. 4. Strong winds are formed followed by heavy rain, crashing thunder, and flashing lightning. 5. When the front passes, the temperature warms up and it becomes humid. 6. When the front passes, the weather turns cooler. 7. Farmer Brown prefers this type of front. 8. Usually happens and is over with quickly.