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Why does it rain? Weather – Earth science

By |2017-08-20T18:07:53+00:00August 20th, 2017|Physics|

Thanks to Rocbike for the great picture! When the Earth first formed, about 4.5 billion years ago, it didn't rain here. Until about four billion years ago, Earth was too hot for raindrops to form, and water just hung in the air as steam without falling as rain. Then as the Earth's surface began to cool, in the Archaean era, huge clouds formed and began [...]

Rain project – Weather science

By |2018-05-31T11:49:18+00:00August 20th, 2017|Physics|

People driving cars in the rain Some of the tiny particles inside the clouds - the cloud seeds - are made of pollution from cars and factories. They're little particles of carbon from burning gas, or other pollutants. Because people drive more on weekdays than on weekends, there is more and more pollution [...]