Weather and Climate lesson for Geography Secondary 1

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Slide presentation for Regent Secondary School stdents into weather and climate

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Weather and Climate lesson for Geography Secondary 1

  1. 1. Geography Sec 1 E learning Lesson
  2. 2.  What is weather and what is climate? Their difference? Elements of climate and weather (Temperature and Rainfall How do we measure temperature and rainfall? Different types of major climates.
  3. 3.  Weather is defined as the condition of a place over a short period of time. Climate refers to the weather pattern of a place over a long period of time.
  4. 4.  Use of  Temperature  Rainfall  Wind
  5. 5.  Defined as the degree of hotness or coldness of the air It varies:  Throughout the day (eg. Cooler in the early morning and hot in the afternoon)
  6. 6.  There is a difference between temperatures at the equator and poles It is hotter near the equator then the poles
  7. 7.  The height of land (High mountain to lowland) As you go higher, it gets colder. As you get closer to the surface, it gets warmer. This is because air is warmest at the surface
  8. 8.  Temperature can be measured in different ways. You use a THERMOMETER to measure temperature. First measurement: Maximum Temperature (high) and Minimum Temperature (low).
  9. 9.  Mean Daily Temperature  (Daily Max. Temperature + Daily Min.Temperature) ÷ 2 Daily Temperature Range  Daily Max. Temperature – Daily Min. Temperature Mean Monthly Temperature  Sum of mean daily temperature for the month ÷ Number days in month.
  10. 10.  Mean ANNUAL temperature  Sum of monthly temperatures in the year ÷ 12 Annual temperature range  Max. mean monthly temperature – Min. monthly temperature
  11. 11.  It is a wooden box with louvers (Openings)rculate for the air to circulate. The roof is made of double layers to protect the instrument from the direct rays of the sun It is painted white to reflect the heat from the sun The box stands on four legs about 1 meter above the ground.
  12. 12.  Refers to the amount of rain an area receives over a period of time.
  13. 13.  We use a rain gauge
  14. 14.  It is made up of 5 parts (an outer casing, a copper cylinder, a glass bottle, a funnel and a separate measuring cylinder)
  15. 15.  Measured in millimeters (mm) or centimeters (cm) Rainwater collected after 24 hours is emptied and measured. This is called daily rainfall. Monthly Rainfall refers to rainfall in a month Annual Rainfall refers to rainfall in a year
  16. 16.  Wind is the movement of air from one place to another. This is due to difference in air pressure caused by heat.
  17. 17.  We use a Wind Vane to record the direction of the wind.
  18. 18.  Tropical Climate  It lies on between the equator and the tropic of cancer and capricorn.  The sun’s rays are more intense at or near the equator  Experience high temperatures ranging from 20ºC to 30ºC  Receives same amount of energy all year round  Has high annual rainfall ranging from 1000mm to 2000mm or more.  Hot and wet climate  Examples???
  19. 19.  Temperate Climate  Lie between Tropic of Cancer and Arctic Circle, and Tropic of Capricorn and Antarctic Circle  Experience four seasons every year: Spring, Summer, Autumn and Winter  Receive different amounts of sunlight in different periods of the year.  Moderate temperatures and moderate rainfall throughout the year  Examples???
  20. 20.  Polar Climate  Lies between Arctic Circle and North Pole, and Antarctic Circle and South Pole.  Experience summer and winter  From March to September: North Pole experience six months of sun. From October to February: South Pole experience six months of sun  Very Dry because of lack of water vapour  Examples???
  21. 21.  Daily Activities  Weather will determine whether we stay indoors or participate in outdoor activities.
  22. 22.  Housing  Humans like to live in places that are not too hot or cold.
  23. 23.  Tourism  Some climates provide different tourism experiences
  24. 24.  Production of Electricity  Use of wind energy
  25. 25.  Food and Water Supplies  Different crops thrive under different conditions
  26. 26.  Loss of lives and property  Extreme conditions can destroy lives and property

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