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Presentación earth, air, weather, pollution

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Presentación earth, air, weather, pollution

  1. 1. UNIT 9UNIT 9OUR PLANET:OUR PLANET:THE EARTHTHE EARTH
  2. 2. Earth
  3. 3. WeLiveOnPlanetEarth.75% of the Earth is covered with water25% of the Earth is covered with land
  4. 4. TheEarthissurroundedbyairTheatmosphereis the airaround theearth
  5. 5. Theatmosphereisamixtureofgases.
  6. 6. AirAir
  7. 7. Oxygenisnecessarytobreatheandlive
  8. 8. Wecan’tseethe airAir iseverywhereWe can feel itbecause the windis the air moving
  9. 9. WaterWater
  10. 10. Water is essential forlife on EarthWater is a liquid, but…
  11. 11. There are different states of water:Solid=Ice Gas=Water vapourLiquid=Water
  12. 12. There is water in…There is water in…Oceans and seas…Oceans and seas…The water in seas and oceansThe water in seas and oceansisis salt watersalt water..
  13. 13. Rivers, lakes, and under the earth, calledRivers, lakes, and under the earth, calledunderground waterunderground water ……There is water in…There is water in…The water in rivers, lakes and underground isThe water in rivers, lakes and underground isfresh waterfresh water..
  14. 14. WeatherWeather
  15. 15. The weatherThe weather dependsdependson different factors:on different factors:The windThe windThe skyThe skyThe temperatureThe temperature……and the rainfalland the rainfall
  16. 16. The weather is different in each seasonThe weather is different in each season

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