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Units 1 and 2, Social Science.

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Units 1 and 2, Social Science.

  1. 1. Unit 1 The Earth. Imaginary lines.  The vertical imaginary lines from the North Pole to the South Pole are called meridians. The Greenwich meridian is the 0º one.  The horizontal imaginary lines from around the globe are called paralells. Parallel 0º is the Equator.  Longitude is measured by meridians and latitude by parallels. We use degrees to measure.
  2. 2. Unit 1 The Earth. Earth´s movements ROTATION it takes 24 hours REVOLUTION it takes 365 days and 6 hours
  3. 3. Unit 1 The Earth. Earth´s layers.
  4. 4. The geosphere is divided into layers: Unit 1 The Earth. Earth´s layers.
  5. 5. Unit 2 .Atmosphere, weather and climate. The atmosphere is divided into layers: ATMOSPHERE. IS THE LAYER OF GASES AROUND THE EARTH 1.TROPOSPHERE. IT CONTAINS THE AIR WE BREATH,WEATHER AND CLOUDS 3.IONOSPHERE. The layer which has almost no gases. There are satellites, and it´s next to space. 2.STRATOSPHERE. IT CONTAINS THE OZONE LAYER IT´S THE NEXT LAYER ABOVE THE TROPOSPHERE.
  6. 6. Unit 2 .Atmosphere, weather and climate. The weather occurs in the troposphere. We can see : Thunderstom Rain Rainbow Precipitation It can be: Snow Hail
  7. 7. Unit 2 .Atmosphere, weather and climate. Measuring the weather : Rain gauge Thermometer Anemometer Barometer Weather vane. Measures precipitation Measures the temperature in the air. Tells the speed of the wind. Tells us about air pressure. Tells us the direction of the wind.
  8. 8. The weather forecast in Spain. In Madrid it´s sunny and the temperature is 9 degrees.

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