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?
[]

1. Define weather. 2. What four factors affect weather
 * The WEATHER is the condition of the atmosphere (or changes in the atmosphere) at a particular time and place **
 * ** the air **
 * ** the sun **
 * ** water **
 * ** the earth's movement **

Weather vs Climate
__ [] __ 3. What is the difference between climate and weather? **Climate **is what you expect; **Weather** is what you get.
 * Climate** is about long-term records, trends and averages;
 * Weather** is the day to day experience.


 * Climate** is the sum or synthesis of all the weather recorded over a long period of time. It tells us the average or most common conditions, or extremes, or counts of events, or frequencies. **Weather** is a description of conditions over a short period of time - a "snap shot" of the atmosphere at a particular time.

Air Pressure
__ [] __ 4. Complete the following chart: clockwise away from the earth || Air flowing clockw-wise to the earth. || clock-wise || .Flows clock-wise || make parcipatation  ||
 * || ==== **High Pressure** ==== || ====** Low Pressure **==== ||
 * Air movement (up or down) || . Air flowing counter
 * Temperature of air || .Colder tempurture || Hoter tempurture ||
 * Wind movement at ground || .Flows out counter
 * Expected weather || .Slowly decende || .Go up and form clouds to
 * || == 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 ||

[] 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. wind speed || The wind speed || temp./evaporation point ||. ||
 * The following web site describes some of the instruments meteorologists use to collect data about the weather. **
 * ** Instrument Name ** || ** What It Measures ** || ** Unit of Measurement ** ||
 * .ana meter || It mesures the
 * .pyco meter || It mesures the
 * .bio meter || || ||
 * || == Weather Wise ==

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

1. What are clouds? Water in a form of a gas 2. Explain how clouds form. 3. What are the 3 "families" of clouds and what do their Latin names mean? 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; [] 
 * Use this web site to answer the following questions. **
 * [] **
 * Clouds form when air cools below its saturation point and causes water vapor to condense into tiny water droplets. **
 * Cirrus means 'curl of hair', cumulus means 'heap', and stratus means 'layer' **
 * || ==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 ||


 * Read the details at [] and follow the links.**

Cloud Forecasting

 * ** Cloud Type ** || ** Description ** || ** Possible Weather ** ||
 * cirrus || || ||
 * altocumulus || || ||
 * nimbostratus || || ||
 * cumulus || || ||
 * cumulonimbus || ||  ||

Wind Forecasting

 * **Wind Direction** || **Possible Weather** ||
 * North ||  ||
 * South ||  ||
 * East ||  ||
 * West ||  ||

Senses Forecasting

 * == 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 || []
 * __A Cold Front__**

A cold front happens when a fast-moving mass of cold air hits a warm air mass. The warm air, which holds a lot of water vapour, gets pushed upward quickly.

The water vapour condenses to a lot of water droplets, which form tall clouds. Eventually the weight of the drops can no longer be supported by the air, and they fall.This type of storm is often violent, accompanied by a lot of thunder and lightning, and a heavy rainfall in a short period of time. But it ends quickly.

**__A Warm Front__**

A warm front happens when a fast moving mass of warm air encounters a cold air mass, and rides up on top of it. The warm, humid air eventually rises high enough for water droplets and clouds to form, and rain to fall.

This type of storm usually covers more area, lasts longer, and will produce a steady rain for a long period of time.

Thunder and lightning may occur, but of a less violent nature than in a cold front.

[] In a cold air front it has a bad weather,storms for a short time and for a warm air front its longer but has less active weather. Write the capital letter A or B at the end each sentence. A = Cold Front B = Warm Front 1. Cool air mass - warm air mass moves in. 2. Warm air mass - cool air mass moves in.A 3. Brings gentle rains that may last for hours or days.B 4. Strong winds are formed followed by heavy rain, crashing thunder, and flashing lightning.A 5. When the front passes, the temperature warms up and it becomes humid.B 6. When the front passes, the weather turns cooler. A 7. Farmer Brown prefers this type of front. B