All the Eart's heat and light come from the sun.Sunlight travels at 300,000 km/s and takes about eight and half seconds to go from the sun to the earth.When sunlight shines through rain, it breaks into lots of different colours and makes a rainbow. You must stand with your back to the sun with rain in front of you to see a rainbow. The people like do weather forcasts are like detectives. they use lots of information to work out what will be. Over 2000 years ago the greeks put weather is always changing. Four hundred and fifty milion years ago, the shaara desert in africa was covered in ice! sixty-five milion yeras ago, the dinosaur probabily died because the weather was too cold for them. But 50 milion years ago, england was very hot and there were crocodiles in the water! people think that the Earth is getting warmer now and that soon the temperature will incrase by 2°. A 2° increse in temperature will mean a 0.6 metre in the sea, and lots of towns will be undred.
10pt al migliore
2007-03-15
05:18:38
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