Ppt elements that affect weather


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  • The water cycle is powered from solar energy. The sun evaporates water from the entire Earth - 86% of the evaporation on Earth comes from the oceans. Evaporation cools the atmosphere and planets. The water cycle involves the evaporation, condensation and precipitation of water and all of these events shape the weather on a day to day basis. Evaporation and precipitation are ways in which water moves through the water cycle on any given day during a weather event.
    During certain times of year and certain seasons, it might rain often causing plants, soils, rivers, and lakes to absorb more water. During other times of year, hot, dry weather can lead to water evaporation causing plants and soil to dry out and streams and rivers to have lower elevations, but over the course of a year or several years, a balance occurs in the water cycle so the amount of water entering the system is equal to the amount exiting. This balance in the water cycle helps stabilize the climate. Climate is affected by the natural fluctuation of the balance of water entering and exiting the system on a global scale.
  • Ppt elements that affect weather

    1. 1. Elements that affect weather - cloudiness - precipitation -Recording weather condition Prepared by: Ms. Shirley Puaso-Valera Grade 3 St. Fancis/St.Augustine/St.Maria Goretti SY 2013-2014
    2. 2. Key Questions A. How do factors affect the weather? B. Why do we need to know the weather for the day?
    3. 3. Objectives A. Infer that weather changes from day to day. B. Identify the elements that affect the weather. C. Record in a chart the weather for the day/ week using symbols. D. Analyze how the different elements can affect the weather condition.
    4. 4. Look outside. Describe the weather for the day through the movements of the clouds.
    5. 5. Clouds -Is a collection of droplets of water floating in the air. -Found in the lower part of the atmosphere, troposphere
    6. 6. Clouds -Some clouds are formed in the stratosphere ,too -The shape and the position of the clouds tell the direction and speed of the wind in the sea.
    7. 7. Clouds - Tells the air how much water vapor is in
    8. 8. What are the kinds of clouds? How clouds help in telling the weather for the day?
    9. 9. Kinds of Clouds • Stratus clouds - the indicate light rainy weather - can be seen early in the morning or late in afternoon
    10. 10. Kinds of Clouds • Cirrus clouds - are thin , curly , and feathery - they are formed high up in the sky where air is thin and wind does not blow too much
    11. 11. Kinds of Clouds • Cirrus clouds - the water vapor rises straight up high into the sky to form small lumps of clouds that look like feathers - they are formed when there is not much moisture in air
    12. 12. Kinds of Clouds • Cumulus clouds - are heaped and fluffy like cotton - they are formed when the wind moves straight up in the sky
    13. 13. Kinds of Clouds • Cumulus clouds - generally indicate fair weather but when they become too big and grayish, they may bring bad weather characterized by lightning , thunder, and strong rain.
    14. 14. Kinds of Clouds • Stratus clouds - are spread out in the sky - they are formed when the wind moves horizontally, usually cover a large area,
    15. 15. Kinds of Clouds • Stratus clouds - the indicate light rainy weather - can be seen early in the morning or late in afternoon
    16. 16. Kinds of Clouds • Stratus clouds - it indicate light rainy weather - can be seen early in the morning or late in afternoon
    17. 17. Kinds of Clouds • Nimbus clouds(Cumulonimbus) - are rain clouds - appears grayish , bluish, or blackish
    18. 18. Kinds of Clouds • Nimbus clouds(Cumulonimbus) - composed of bigger droplets ready to fall as rain - seen during heavy rain or thunderstorm
    19. 19. Cloud in a jar activity: • Observe • Discussion on the result of the activity
    20. 20. Video clip viewing
    21. 21. Water Cycle
    22. 22. The water cycle affects both climate and weather
    23. 23. • When clouds cover the entire sky , the temperature directly below the clouds is lower. It is cooler because clouds reflect the heat of the sun in outer space •Clouds protect us from sun’s radiation by covering the space above us.
    24. 24. Precipitation • Water that falls from the clouds • Air temperature determines the form of precipitation that falls • 4 main types of Precipitation: Rain, Sleet, Snow and Hail
    25. 25. Types of Precipitation Rain Sleet Snow Hail
    26. 26. Different kinds of precipitation • Snow , sleet and hail – – They are solid Droplets of water in the clouds become solid when the temperature of the air is very low and water becomes frozen
    27. 27. Different kinds of precipitation • Drizzle or shower
    28. 28. Different kinds of precipitation • Thunderstorm – raindrops are big and they pour for about an hour - usually accompanied by lightning and thunder
    29. 29. Severe Weather Thunderstorms Lightning Tornadoes
    30. 30. More Severe Weather Hurricanes Blizzards
    31. 31. • When rain fall heavily, the weather is described as rainy. In the Philippines, rainy weather is accompanied by thunder and lightning. •In Metro manila and other areas , heavy rains are usually followed by floods.
    32. 32. Instruments used to measure weather condition • Rain gauge - a collection of pail with a ruler to measure the depth of rain water.
    33. 33. Instruments used to measure weather condition
    34. 34. • A psychrometer is used to measure humidity. It has two bulbs in order to function properly. The two bulbs are wet and dry. The temperature difference between the two is noted.
    35. 35. • An Anemometer is an instrument which is used to measure the speed or force of wind and is mostly found in weather stations. This term was derived from a Greek word known as 'enomos' which means 'wind'.
    36. 36. • Years ago farmers would use the wind vane to keep an eye on the winds direction. If the wind was blowing strong from a certain direction it would mean rain was on it's way.  At small public airports they have a wind sock flying so a pilot can tell how the wind is blowing to prepare for a landing/takeoff.
    37. 37. PAGASA • (Philippine Atmospheric , Geophysical, and Astronomical Service Administration • observes weather conditions, issued warning signals and storms
    38. 38. PAGASA • Philippines is always visited by tropical cyclones because it is in the typhoon belt. • Tropical cyclones are weather disturbances when it grows, it develops into a typhoon or bagyo.
    39. 39. Weather forecast
    40. 40. Weather Forecast
    41. 41. Weather Forecast
    42. 42. Generalization • Different factors affect and determine weather conditions. • Weather condition changes from time to time , thus everybody should always be ready.
    43. 43. Valuing • Always be ready to protect ourselves from the different weather conditions.
    44. 44. Evaluation Answer page 325 A.Fill in the blanks with the correct words to complete the sentences. B.Match the weather instruments to its use.
    45. 45. Can you identify these clouds?
    46. 46. Other Cloud Types Cirrocumulus Stratocumulus Cirrostratus Cumulonimbus
    47. 47. More Cloud Types Altostratus Altocumulus Nimbostratus
    48. 48. • Earth’s tilt at an angle of 23.5 degrees to the plane of its orbit around the Sun. • Major components of Earth that influence weather are: atmosphere, land forms, and water. About 70% of Earth’s surface is • covered by oceans.