用所给词汇写一篇作文,词汇:rainbow,rain,cloud,come fome,the sun,stream,va

We could see the beauty of science through exploring where rainbow comes from and disappears。First,the sky becomes darker and darder as the the clouds become more thick。While it is raining there are streams of water on the ground and drops water in the sky。Next,when the sun comes out of the clouds the area where there are most drops of water appears to be colorful because of the wave refraction。Finally,as the sky becomes hotter and hotter due to the heat from the sun,most of the water in the sky vapours and the rainbow disappears。技术有限,多多包含哈 ：）