Monday, 2 June 2008
When it rained on Tuesday we couldn't believe how dirty our car was. When we drove around we noticed all the cars were the same, and the windows and windowsills of the house were dirty too. Where had the dirt come from? Why didn't the rain wash it away??
I was told it was dirt form the Sahara desert in Africa! At first I didn't believe it, but now I understand that sometimes there can be a big dust storm in Africa, and the airborne dust drifts across the continent until it settles somewhere thousands of kilometres away. When it mixes with rain, it becomes mud. And apparently if it happens in winter time then the snow that falls can be pink, yellow, brown, or grey, depending on the colour of the dust.
posted at 14:27