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Weather

Weather. Grade 4 and 5. Describe the current weather. Sunny Cool Clear skies Possibly in the 40s. How does weather happen?. Weather describes the condition of the outside air at a specific time. Weather changes all the time because of the air. Air is also known as the atmosphere.

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Weather

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  1. Weather Grade 4 and 5

  2. Describe the current weather • Sunny • Cool • Clear skies • Possibly in the 40s

  3. How does weather happen? • Weather describes the condition of the outside air at a specific time. • Weather changes all the time because of the air. • Air is also known as the atmosphere

  4. Describe the weather throughout the day… • Morning • Cold • Wet • Maybe cloudy • Afternoon • Cold, but warmer than the morning • Sunny • Dry • Clear skies

  5. Describe the weather throughout the day… • Evening • Cold • Windy • Clear • The sun also helps in warming the Earth • http://local.msn.com/hourly.aspx?q=Massapequa-NY&eid=20546&zip=11758

  6. Measuring weather • Thermometer measures air temperature • Anemometer measures wind speed

  7. Measuring weather • A large body of air that has a certain air temperature and moisture content is called an air mass. • Cool air masses usually form where the land is cool. • Warm air masses form where the land temperature is warmer. • During the summer months in New York, the weather is hot and sticky. That stickiness is caused by humidity. • Humidity is moisture in the air

  8. Measuring weather • Dry air masses form over dry, inland regions, while moist air masses develop over oceans. • During the summer months in New York, the weather is hot and sticky. That stickiness is caused by humidity. • Humidity is moisture in the air

  9. Cold Front • A cold front forms when a cold air mass moves underneath a warm air mass, causing warm air mass to rise sharply. • Heavy rains, thunderstorms, and snow are linked with cold fronts. • These are called precipitation

  10. Cold Front

  11. Warm Front • A warm front forms when air moves up and over a cold air mass. Light rains or clouds are linked with a warm front. • Light rains or clouds are linked with a warm front.

  12. Review • What is the difference between a cold front and a warm front? • Would you consider New York City to be coastal or inland? Why?

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