The Sun (the kids

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The Sun(the kids section)

• TQ Team C0112425 2001

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The Sun

• In this chapter we will talk about
• The Role of the Sun
• Effect on Weather
• The snug Earth
• Solar Power
• Why do we have temperature
• How do we measure air temperature?

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The Suns Role

• The Sun is the ultimate source of heat energy of
  the earth.
• All the Earths heat and light comes from the Sun.

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Life Support

• The Sun keeps the temperature of most of the
  Earths surface at 51 to 49 degrees Celsius.
• For most living things can only survive at 0 to
  49 degrees Celsius.
• If the amount of sunlight reaching the Earth was
  cut by one tenth, the oceans would turn to ice
  and like on Earth would die.

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Effect on Weather

• The Sun is the key to the worlds weather.
• Its rays filter through the atmosphere and warm
  the Earths surface which heats the air above.
  This makes the air move because warm air rises.
• The movement of air causes winds which lead to
  weather changes.

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The Snug Earth

• The Earth absorbs sunlight and then releases it
  into the air again as heat.
• The heat is trapped by water vapour and clouds in
  the atmosphere and reflected back to Earth.
• The atmosphere acts like an enormous blanket
  around the Earth, keeping the warmth.

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Solar Power

• Solar panels are used to collect the Suns heat.
• Water in them absorbs the heat and is used to
  warm homes. Electricity can also be made from
  sunlight.

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Why do we have air temperature?

• Air temperature tells us how hot or how cold the
  air is.
• This greatly affects the weather.
• It is important to us because we need to wear
  different clothes for different temperature.

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How do we measure air temperature?

• Thermometers are used to measure air temperature.
• They are placed in the shade, 1.5m off the
  ground.
• That is because in direct sunshine and on the
  ground, temperature recorded maybe much higher
  than that off the ground.
• Air temperature is measured in degrees Celsius
  (C) or degrees Fahrenheit (F)

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Photos I

• Solar Panels

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Photos II

• A Sixs thermometer

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End

• TQ Team C0112425 2001
• http//library.thinkquest.org/C0112425