weather ppt
TRANSCRIPT
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Weather!!
Term 2 Science unit of work
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What is weather?
• The weather is just the state of the atmosphere at any time, including things such as temperature, precipitation, air pressure and cloud cover.
• Daily changes in the weather are due to winds and storms.
• Seasonal changes are due to the Earth revolving around the sun.
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What is climate?
• Climate is the average weather usually taken over a 30-year time period for a particular region and time period.
• Climate is not the same as weather, but rather, it is the average pattern of weather for a particular region.
• Weather describes the short-term state of the atmosphere.
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Buzz words!• Atmosphere - The atmosphere covers the Earth. It is a thin layer of mixed
gases which make up the air we breathe. This thin layer also helps the Earth from becoming too hot or too cold.
• Temperature – How hot or cold the atmosphere is at any given point. Measured in degrees Celsius and Fahrenheit.
• Precipitation – Any form of water falling from the sky, for example water, snow, sheath and hail.
• Air pressure – The force per unit area exerted on a surface by the weight of air above that surface in the atmosphere of Earth.
• Cloud cover – The percentage or fraction of the sky that is covered by clouds
• Seasons - A season is a subdivision of the year, marked by changes in weather, ecology, and hours of daylight.
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The weather today
• What is today’s weather like?
• What season are we in?
• What is the temperature today?
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What do we know about Australia's climate?
Australia’sClimate
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Is the weather the same in Sydney as the weather in Alice Springs?
Sydney Alice Springs
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What do you want to learn about the weather?
• Fill out one of the surveys at the front of the classroom and return it to Mr Williams by the end of the lesson.